1)I don't like open limping PP's. You lose out on possibly winning the hand preflop, or getting raised at a later point anyways. If you're at a passive table that allows you to openlimp PP's for set value, are they likely to pay you off?
-I'm more careful about raising PP's preflop if I have known wide 3bettors yet to act

2)I tend to avoid blind stealing until I've determined that the players behind are somewhat tight and are willing to fold. Usually, I slowly widen my stealing range as I get a better idea of their playstyle.

3)Depends on the the players behind.
-Tight players I'll blind steal with marginal hands.
-Nits I'll steal with some trashier hands.

4)I'm not fond of shoving AK pf, unless it's a shortstacker.
If it's profitable to get it in pre with AK, Villain is going to have a pretty high VPIP/PFR/3BET and aggressive too.

5)I setup my HEM to color people's names by stack sizes, bringing my attention immediately to shortstackers
<25bb = Red
<55bb = Yellow
<125bb = Green
>125bb = Blue

6)I won't 3bet if their 3bet calling range crushes my hand. I'll limp in if someone else has in front of me and no one else is likely to raise behind.