vi commands

Here's some vi commands I'm using a lot lately:

command	description
i	insert text
$	go to end of line
0	go to beginning of line
u	undo
R	overwrite text starting at cursor
dd	delete line
{Number} + dd	delete {Number} of lines
shift-j	append next line at end of current line
ctrl-f	forward one page
ctrl-b	back one page
shift-g	end of file
shift-h	beginning of file
ctrl-g	which file am I editing?