Which tables are we talking about? And when you say limits, do you mean actual limit games, or just lower buy-in NL and PL? I play about 80% of the time on the Party NL and PL $25 buy-in tables, and have no problems getting people to fold most of the time. Typically, if I pre-flop raise 3xBB (my usual) and then follow up with a 2/3 pot bet on the flop, I get folds. I get them so much, that I expect them... calls are unusual, raises wholly unexpected. I find that those tables are getting tighter than they used to be, in general, so unless you just ended up at a crazy table, this is pretty good strategy. The only caveat - your pre-flop raise should leave you in the hand with 1-2 others. If you're getting more action than that you need to increase your pre-flop raise. Then the flop bluff will pay off because there's less of a chance that someone hit.