When I didn't have enough of a BR, I did two things: played micros at UB (.05/.10) and bought in with less than the max. The reason for both was simply to ensure I could play my best without worry of losing too much. That's the philosophy behind all of the BR management stuff that you read (essentially don't play above your bankroll to the point that a losing streak will hurt you bad and/or losing a few buyins makes it hard to play with proper aggression), and doing it this way has worked for me.

- Jeffrey