How do you all account for wins and losses for tax purposes? I've just created a spreadsheet
in Excel that has the following columns:
Date - Date of Play
Location - Which Casino
Coin-In - Total Cash I Put Into the Machine(s) That Day
Take-Away - Total Cash I Get from the Ticket Redemption Machine, If Any
Gain/Loss - Coin-In Minus Take-Away
Total Gain/Loss - Sum of Gain/Loss Entries
Is there anything else I need to keep track of?
Also, I just got my first W2G from Red Rock the other day (4x Deuces on $.50 LDW). I've
been playing here and there since I moved out to Las Vegas at the start of Feb, and I've
always used my Boarding Pass Card out there. Would they have a record of my play since
then so I can start building my playing history? I know I should've started sooner, but I didn't
expect to play as much as I do now. 
Thanks!!