Always play 4 tables. For me it makes me play much more patient. It all becomes a habit and it is so easy after you get used to it. My buddies always watch and think I am insane and don't understand how its done, but when you have seen every possible hand there is in poker it really isnt that difficult. I play very tight so I am not playing that many hands at a time anyways. Sometimes it gets crazy when you catch a hot streak of cards, but normally I can even post at therx while doing it.