take a shower/ get a beer take pictures to prove your car was appart, make sure your lady gets the right angle so it looks like your working..
hahaha I would just spend most of the time cleaning as much stuff as you can. The cleaner everything is the better, and the better it looks. There are tons of things you can do while the heads are off. It just depends if you wanna do it, wanna spend the money, and if the car really needs it.
new valve guid seals and clean everything. Thats what I did while my heads were off. Paint stuff too.