Bankrolling is something that too many players do not take the time to consider. It does not matter if you are just in poker for the love and the fun of the game, or if you plan to play so you can make some extra money. You still need to pay very close attention to your poker bankroll; you need to understand its ins and its outs completely.
You need to keep a close account of the expenses you use in poker, as well as your income, and you need to do it for extended periods of time.
It is not too much to say you should make up a balance sheet to help you keep close track of all your expenses. Include everything, from small games to tournaments to online games.