Vim tips
Install color scheme
<geshi lang="bash"> $ mkdir -p ~/.vim/colors cd ~/.vim/colors/ wget http://vimcolorschemetest.googlecode.com/svn/colors/darkslategray.vim echo "colorscheme darkslategray" >> ~/.vimrc </geshi>
View tab characters in a file
One easy way is ":set list". It also shows other control characters, including the line ending. Turn it off with ":set nolist".
Paste text without reformat
When I paste code into vim, often it's already formatted. To avoid double formatting, I type ":set paste" before pasting my text.