re: Do you compartmentalize your savings? If so, how do you do it?

We compartmentalize, but not for specific items.

401k-both maxed by wife and I.
Spending account-this is a specific amount that comes out of wife's check every two weeks that is tied to our debit cards.
Bill pay account-my paycheck and what's left in out of wife's check. We max this account at 1month's bills at every deposit.
HIMMA-any amount above the 1 month bill amount gets transferred into this account. We should probably do something better here.