It's a myth that at the lower limits people will not fold. They will. They just won't usually fold if they have gotten ANY piece of the flop, including sometimes a gutshot draw. This means that if you can tell the difference between a drawing hand and a bottom pair, you should be able to push the draw out on the river when it doesnt hit, or let go when it does. I know it's been said many times before, but the small uncontested pots can add up quickly.