This place really has some great stuff.
Biggest things I'd recommend are:
1. Always do a two bucket wash, one for rinsing the sponge (put a gritguard in it!), the other for your soap. Like the above poster said, Optimum car washes are great. I got this big one http://www.detailedimage.com/Optimum...P284/32-oz-S1/
which will last forever and it smells great.
2. When washing your car, no circles! Barely put any pressure on the sponge, just glide it in straight lines over the body. This will hopefully lift the dirt as opposed to swirling it or grinding it into your clear coat.
3. After a good washing, if you can run your fingers over areas and feel it "bumpy" then it needs to be clay barred.
4. I seal twice a year with Blackfire Wet Diamond, which seems to be pretty nice. Then if you want you can put a wax on top for extra shine.
Oh and get some good tire care products! Some of the most notable things about a clean car are shiny rims and tires. :)