General rules for playing in the blinds with marginal hands in SSLHE

[synth_floyd]

What are the general rules for playing from the blinds in Low Limit Hold 'Em? A lot of the time If i'm in the small blind with a marginal hand and there are a couple of limpers is it generally better to complete the bet and see a flop or just fold it cause that extra little money will add up after a while?

Also, when I'm in the big blind with a fairly marginal hand and there's a raise and say 2 or 3 callers is it worth calling to see a flop or just fold it and save the extra small bet?

These situations come up a lot and I feel like it's a leak in my game. I would've posted in the small stakes limit forum but it seemed like more of a beginner question.