re: Poker & working v.s. poker
If you want to tighten up your game, while still thinking about bankroll, all I can say is MATRIX,
With a Matrix tourney, minimum Buy-in is $1.20, for 4 sit-n-go tables at the same time.
The reason im suggesting this format is that, you get to play a lot of hands for minimal investment.
The points tally is interesting, and every table pays the same money, (the moneys not huge by all means), and you can easy win the matrix point tally too.
But, me personaly, I found that it also helped my to understand more about the fundamentals of sit-n-go poker.
Another good 1 is the $1.10 - 90 seat, double stack, sit-n-go, it pay top 18, thats better than most other pay structures (top 20%).
P.S. I also put a challenge on, from the Academy, the points arent huge, but you wont even know you are doing it, (might be good for a prezzy or 2)