diff --git a/.bashrc.kuba b/.bashrc.kuba
index 8342b2c..55a56a6 100755
--- a/.bashrc.kuba
+++ b/.bashrc.kuba
@@ -18,6 +18,9 @@ alias dvim="GIT_WORK_TREE='/home/kuba' GIT_DIR='/home/kuba/.dotfiles.git/' vim"
 
 alias ls='ls --color=auto'
 
+# Define a OS X-like open command
+open() { command xdg-open "$@" > /dev/null 2>&1 & }
+
 # Source git prompt
 source_existing ~/scripts/git-prompt.sh
 source_existing ~/.bash_prompt.kuba
diff --git a/.ssh/config b/.ssh/config
index 83b668a..14ec9a0 100644
--- a/.ssh/config
+++ b/.ssh/config
@@ -22,7 +22,7 @@ Host geym
 
 Host kubaServer
   HostName 192.168.0.102
-  User pi
+  User ubuntu
   Port 22
 
 Host vera
diff --git a/.vimrc b/.vimrc
index fa524da..935de2a 100755
--- a/.vimrc
+++ b/.vimrc
@@ -289,6 +289,12 @@ nmap <S-k> <c-y>
 vmap <S-j> <c-e>
 vmap <S-k> <c-y>
 
+" Toggle line numbers
+nmap <Leader>1 :set number!<CR>:set relativenumber!<CR>
+
+" Toggle paste mode
+nmap <Leader>p :set paste! <CR>
+
 " Misc.
 map <Leader>n :noh<CR>
 vmap <Leader>T :'<,'> Tabularize /