EDIT: Looks like someone had a pull request for it. Merged.
gg - top of file
G - end of file
5gg - go to line 5 (I find this easier than 5G)
ciw - delete current word and enter insert mode
yiw - copy current word
zz - center cursor (its also nice to remap G to Gzz etc)
I find 'C' simpler for that command.
'c$' OR 'C' = change to end of line
'd$' OR 'D' = cut to end of line
'y$' = yank to end of line
'cc' = change entire line
'dd' = cut entire line
'yy' OR 'Y' = yank entire line
Also a nice one is
For splitting windows and navigating the file system.