Do you guys keep record of your live play?...

[LockLow34]

I do.

I keep a written record on a note card in my 'poker wallet' that when it fills up gets transferred to an Excel spredsheet
For each location and each limit I have a distinct 'sheet' within the more encompassing spreadsheet. On each of those I keep track of the following info for each session:

Date/Time start
Date/Time end
Buy-in
Cash-out
Size of the big bet if cash game
Place finished in tourney if a tourney

From that info I calculate for each session:
total hours played
total cash won/lost
# big bets won/lost
# big bets won/lost per hour
Average big bets won/lost per hour

I keep a running total for the each game (location/limit) of all this info as well.

Finally on a separate 'sheet' I total everything up to get:

total buy-ins
total cash-outs
net winnings
total hours played
%/hr