I wouldnt raise with rags at the smaller stakes as people realy love to call down with crap hands.

Other then that, I can only agree with what andr3w321 said, you need to be able to spot who is tagg? who is raising with rags? who is a rock? who is a caller? and change your play to handle them. Oh, and this is going to sound obvious, if the table is/turn bad, leave!