How to beat bad players short-handed, fast-blind SnG?0000000

I've been playing some games at home with friends, tournament style, and I've noticed a few things that I'd like to take best advantage of. This applies to all but a few players:
1)They will almost always call the BB (about 90% before the blinds get big), but pretty much never raise (willing to call with 63o, won't raise with QQ sort of thing).
2)They will call a few bets on the flop/turn but are often willing to fold the river (but not always - one time a person called AI with nothing, J5 in pocket, and the board held a Q and an A - I guess they figured their opponent was bluffing, but god knows how they planned to beat that bluff)
3)They decide wether to call bets based not on how big they are in relation to the pot, but how big they are in relation to their stacks.
4)They seem to have no clue about pot odds and chasing out drawing hands
5)They very often massively under- or over-bet

I win more than my fair, but I think I could be winning more.

What's the best strategy to consistently beat these people?

Eh, I tried to edit my post but couldn't find a button for it - first time poster. Sorry for the errors and the ooooooo in title^^

I also forgot to mention that PF raises scare 1/3 to 1/2 of opponents out, but it's very rare to get a hand down to 2 or even 3 players on the flop.

I would just play ultra-ultra tight but the blinds typically start at about BB = 3-5% of a starting stack and increase every ten or so hands - which is too fast to wait for premium hands. Also, the games are usually 5-7 players, so the blinds come around more often.