[ichinaski]

My favourite ones:

" Make Y behave like other capitals

nnoremap Y y$

" Reselect visual block after indent/outdent

vnoremap < <gv

vnoremap > >gv

[tomlu]

Curious - what's the point of retaining the selection after indenting?

[jdonaldson]

Sometimes you want to indent more than once. This remap is fine, but the idiomatic way to do this is just to use a period to repeat the last command. It doesn't hurt to get used to that.

[verroq]

Enter a number then any command to repeat it as many times as you want.

[docwhat]

Sometimes it's easier to see things line up.