>> - indent (move right) line one shiftwidth
<< - de-indent (move left) line one shiftwidth
>% - indent a block with () or {} (cursor on brace)
>ib - indent inner block with ()
>at - indent a block with <> tags
3== - re-indent 3 lines
=% - re-indent a block with () or {} (cursor on brace)
=iB - re-indent inner block with {}
gg=G - re-indent entire buffer
]p - paste and adjust indent to current line