the biggest problem with playing in the blinds is that you will be out of position for the rest of the hand.

I will address each of your situations in a general sense, however the best method to gain an understanding of how to play hands is to post specific hands where you didn't know how to react.

multiway limped pots - If you have a really strong hand then re-raise to limit the field. If you have a very weak hand in the SB you should probably fold in most cases. From the BB simply call and only continue if you hit 2 pair or better on the flop.

Min raised pots - Again, re-raise with a big hand, otherwise unless you have a hand with really good suckout value like pp's or suited connectors and there are several callers to the minraise you should probably just fold

Raised pots - re-raise with a big hand, fold all others

folded around to the blinds - play these like you would a standard hand. Raise if it is good, fold from the SB and check from the BB with weak hands.

I hope this helps and again, feel free to post specific hands in instances where you felt confused.