SSD всегда не хватает места

Сегодня я открыл свой ноутбук, чтобы найти сообщение: Failed to write file '/home/chris/.cache/xfce4-notifyd-theme.rc.TF9RSX': write() failed: No space left on device отображается во всех рабочих пространствах. Я погуглил код ошибки, но ничего не нашел ... Сначала я запустил sudo apt-get autoclean, который освободил место, но он был сразу заполнен. После запуска df -h это мой результат:

chris@ubuntu:~$ df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sdb1       113G  107G     0 100% /
udev             10M     0   10M   0% /dev
tmpfs           1.6G  162M  1.4G  11% /run
tmpfs           3.9G  812K  3.9G   1% /dev/shm
tmpfs           5.0M  4.0K  5.0M   1% /run/lock
tmpfs           3.9G     0  3.9G   0% /sys/fs/cgroup
tmpfs           797M   20K  797M   1% /run/user/1000

Почему мой жесткий диск постоянно заполняется, если я не загружаю новые файлы, чтобы занять место на диске? Нормально ли так много раздувать tmpfs? Почему у меня так много tmpfs? Как я могу это исправить? Я буду запускать любые команды, если вам нужна дополнительная информация, спасибо заранее.

Редактировать: результат выполнения du --max-depth=2 -h в моем домашнем каталоге:

56K ./chris/.xchat2
5.6M    ./chris/.eclipse
12K ./chris/.wireshark
96K ./chris/.java
12K ./chris/.dbus
175M    ./chris/.fgfs
4.0K    ./chris/.emacs.d
76K ./chris/.pulse
12K ./chris/.gnupg
4.0K    ./chris/.ssh
36K ./chris/.macromedia
776K    ./chris/.gstreamer-0.10
2.2G    ./chris/.git
55G ./chris/Videos
32K ./chris/.gnome2
12K ./chris/.oes
5.9M    ./chris/.config
129M    ./chris/Downloads
4.0K    ./chris/.gvfs
8.0K    ./chris/.cups
12M ./chris/.tor
64K ./chris/.FBReader
516K    ./chris/.gimp-2.8
36K ./chris/.redeclipse
12K ./chris/.audacity-data
3.4G    ./chris/Music
8.0K    ./chris/.mission-control
25M ./chris/.kde
20K ./chris/.supertux
14M ./chris/.adobe
8.0K    ./chris/.alsaplayer
427M    ./chris/.local
4.0K    ./chris/.gnome2_private
20G ./chris/Documents
du: cannot read directory ‘./chris/.rpmdb’: Permission denied
4.0K    ./chris/.rpmdb
772K    ./chris/.anki
651M    ./chris/Pictures
32K ./chris/.openshot
32M ./chris/.mozilla
8.0K    ./chris/.gvba
4.0K    ./chris/.wicd
4.0K    ./chris/Desktop
16K ./chris/.swt
280K    ./chris/.assaultcube_v1.104
8.0K    ./chris/.arduino
24K ./chris/.gnash
48K ./chris/.codeblocks
32K ./chris/.speech-dispatcher
12K ./chris/.vidalia
20K ./chris/.steam
746M    ./chris/.cache
104K    ./chris/.gconf
12K ./chris/.android
16K ./chris/.fontconfig
147M    ./chris/.minecraft
56M ./chris/.thumbnails
72K ./chris/.w3af
91G ./chris
91G .

и в / var это:

4.0K    ./www/html
12K ./www
4.0K    ./games/asylum
24K ./games
8.0K    ./tmp/systemd-private-5f5f77793aad4f2098e8f687ac922398-cups.service-xfobcd
8.0K    ./tmp/systemd-colord.service-XHsgEEw
13M ./tmp/kdecache-chris
8.0K    ./tmp/systemd-private-913d62fbb2204e0e99b13b7476c62fab-colord.service-NTCeKg
8.0K    ./tmp/systemd-private-5f5f77793aad4f2098e8f687ac922398-rtkit-daemon.service-x67nDx
8.0K    ./tmp/systemd-colord.service-XD4Uxbv
8.0K    ./tmp/systemd-private-5f5f77793aad4f2098e8f687ac922398-colord.service-tTdyzv
8.0K    ./tmp/systemd-rtkit-daemon.service-XKjazhE
4.0K    ./tmp/systemd-rtkit-daemon.service-XHWewtc
8.0K    ./tmp/systemd-rtkit-daemon.service-Xk8cvl2
4.0K    ./tmp/audacity-chris
4.0K    ./tmp/systemd-colord.service-XAH1PfT
8.0K    ./tmp/systemd-private-913d62fbb2204e0e99b13b7476c62fab-rtkit-daemon.service-4a3wEZ
8.0K    ./tmp/systemd-rtkit-daemon.service-XWHDiow
8.0K    ./tmp/systemd-private-913d62fbb2204e0e99b13b7476c62fab-cups.service-TUqDaa
8.0K    ./tmp/systemd-rtkit-daemon.service-Xr4rgUR
11M ./tmp/kdecache-kdm
23M ./tmp
4.0K    ./opt
4.0K    ./cache/gdm
1.1M    ./cache/nscd
488K    ./cache/samba
8.0K    ./cache/apache2
440K    ./cache/cracklib
124K    ./cache/ldconfig
36K ./cache/libvirt
8.5M    ./cache/debconf
4.0K    ./cache/fonts
72M ./cache/apt
4.0K    ./cache/pm-utils
2.8M    ./cache/man
152M    ./cache/apt-xapian-index
48K ./cache/dictionaries-common
1.5M    ./cache/fontconfig
7.0M    ./cache/flashplugin-nonfree
4.0K    ./cache/realmd
8.0K    ./cache/PackageKit
12M ./cache/cups
12K ./cache/bind
704K    ./cache/postgresql
8.0K    ./cache/analog
258M    ./cache
124K    ./log/samba
12K ./log/fsck
120K    ./log/apache2
25M ./log/condor
52K ./log/exim4
16K ./log/libvirt
540K    ./log/apt
4.0K    ./log/unattended-upgrades
4.0K    ./log/ntpstats
4.0K    ./log/firebird
36K ./log/ConsoleKit
416K    ./log/gdm3
16M ./log/installer
4.0K    ./log/chkrootkit
6.4M    ./log/boot-sav
4.0K    ./log/speech-dispatcher
96K ./log/cups
8.0K    ./log/hp
4.0K    ./log/news
76K ./log/postgresql
28K ./log/tor
2.0M    ./log/wicd
65M ./log
12K ./lib/sgml-base
3.6M    ./lib/aspell
16K ./lib/dovecot
8.0K    ./lib/xfonts
5.2M    ./lib/htdig
28K ./lib/pam
4.0K    ./lib/snmp
36K ./lib/openbox
2.3M    ./lib/samba
4.0K    ./lib/misc
29M ./lib/dkms
32K ./lib/NetworkManager
8.0K    ./lib/dbus
404K    ./lib/rkhunter
64K ./lib/ghostscript
4.0K    ./lib/initscripts
20K ./lib/colord
32K ./lib/apache2
3.2M    ./lib/ispell
4.0K    ./lib/container
4.0K    ./lib/rpm
12K ./lib/condor
332K    ./lib/systemd
16K ./lib/libreoffice
4.0K    ./lib/onioncat
16K ./lib/initramfs-tools
4.0K    ./lib/acpi-support
32K ./lib/exim4
24K ./lib/emacsen-common
4.0K    ./lib/udisks
4.0K    ./lib/insserv
8.0K    ./lib/logrotate
121M    ./lib/dpkg
40K ./lib/libvirt
16K ./lib/tex-common
12K ./lib/dhcp
4.0K    ./lib/update-rc.d
1.0M    ./lib/menu-xdg
4.0K    ./lib/os-prober
4.0K    ./lib/git
28K ./lib/gridengine
121M    ./lib/apt
4.0K    ./lib/ieee-data
1.5M    ./lib/firebird
8.0K    ./lib/ntp
8.0K    ./lib/urandom
5.8M    ./lib/gconf
320K    ./lib/ucf
104K    ./lib/gdm3
20K ./lib/AccountsService
28K ./lib/sudo
4.0K    ./lib/alien
3.4M    ./lib/apt-xapian-index
32K ./lib/dictionaries-common
8.0K    ./lib/xkb
4.0K    ./lib/geoclue
4.0K    ./lib/man-db
44K ./lib/texmf
32K ./lib/php5
4.0K    ./lib/avahi-autoipd
4.0K    ./lib/synaptic
8.0K    ./lib/flashplugin-nonfree
4.0K    ./lib/python
7.7M    ./lib/aptitude
4.0K    ./lib/realmd
8.0K    ./lib/vim
32K ./lib/upower
3.3M    ./lib/PackageKit
4.0K    ./lib/hp
496K    ./lib/usbutils
12K ./lib/sysv-rc-conf
20K ./lib/nfs
48K ./lib/polkit-1
9.1M    ./lib/mlocate
24K ./lib/libxml-sax-perl
8.0K    ./lib/bind
8.0K    ./lib/kdm
2.5M    ./lib/spamassassin
40K ./lib/xml-core
34M ./lib/postgresql
5.8M    ./lib/tor
28K ./lib/binfmts
8.0K    ./lib/security
16K ./lib/alsa
16K ./lib/wicd
4.0K    ./lib/usb_modeswitch
4.0K    ./lib/udisks2
360M    ./lib
4.0K    ./local
4.0K    ./cred_dir
15M ./backups
8.0K    ./spool/sa-exim
4.0K    ./spool/samba
20K ./spool/condor
12K ./spool/libreoffice
16K ./spool/exim4
11M ./spool/gridengine
6.0M    ./spool/torque
16K ./spool/anacron
4.0K    ./spool/rsyslog
4.1M    ./spool/cups
20K ./spool/cron
21M ./spool
2.4M    ./mail
742M    .

Единственное, что выделяется мне сразу 2,2 гита. Я уверен, что такого не может быть много, но я действительно не знаю, как использовать git, я просто использовал его один раз для обучения.