navigating my jawn:

:%s/SEARCH/REPLACE/gc - this finds and replaces while asking you per instance i = insert mode
o = insert on new line
p = paste on new line
ciw = cut inner word (puts you in INSERT mode)
ct * = cut to WHATEVER CHAR U WANT. (ex: ct" will cut everything out until you get to quote. very nifty)
ctr t = yank (copy)
ctr v = visual block (ycan highlight by characters (up, down, left/right))
shift v = highlights an entire line (use this in conjuction with yank or delete)
ctrl n = open and close nerd tree
;q = quit
;w = write
;wq = write quit
;q! = force quit
;wq! = force write quite
;vs [file] = vertical split (put a space and you can tab into a new file)
;e [file] = change into new file
ctr f | = adds another pane vertically. good for debugging, irb, running ruby.
ctrl l = moves from your pane to the right pane
ctrl h = moves from your pane to the left pane
ctrl j = moves from your pane down
ctr k = moves from your pane up
j = moves down
k = moves up
l = moves right
h = moves left
shift a = moves cursor to end of line in INSERT mode
shift i = moves cursor to beginning of line in INSERT mode
w = moves cursor forward one whole word
b = moves cursor backward one whole word
u = undo
ctr r = redo
shift d = deletes from cursor to the end of line
dd = deletes an entire line
ctrl u = page up
ctr d = page down
gg = goes to the top of file
shift g = goes to the bottom of file
. = repeats whatever you just did. helps with tedious tasks
fn f10 = setinvnumber (gets rid of line count.)