Vim commands I forget to use

Elusive

Relative line numbers for vertical movement. I still do too many repeated j's and k's.
e — Move to end of word.
]p — Paste at indentation level.
=`] — After a paste it will automatically reformat what was pasted.
CTRL-6 CTRL-^ — Switch to last opened buffer.
gv — Reselect last visual selection.
v_o — Move to other end of selection.
v_O — Move to other corner of block selection.
vaBVy va{Vy [{V%y — Yank a brace code block from inside including full lines.
$V%y — Same but if on a line before first brace.
[[ ]] [] ][ — Next or prev brace in first column.
[m ]m [M ]M — Next or prev method (second level nested braces), either start or end.
CTRL-p CTRL-n — Complete word, prioritising either "previous" or "next" words. Can be use without and leading text also.
cc C — Same as dd and D but put into insert mode afterwards.
CTRL-xCTRL-k — Complete leading text from dictionary (not spell checking).
CTRL-xCTRL-t — Suggest alternatives from thesaurus.
i_CTRL-a — In insert mode paste in the previously inserted text.
i_CTRL-h — Backspace alternative
i_CTRL-r" — Put from unnamed register in insert mode

f F t T ; — Move to next / prev matching character on line. The quick-scope [1] plugin is a terrific help for this.
CTRL-[ — Alternative to ESC key. Remapped keyboard CAPSLOCK for CTRL to make this easier. Could have just remapped CAPSLOCK for ESC, but I get more utility out of having CTRL there.