How did you rustproof your bottom?

Cruiser, I did do the wire wheel, down to bare metal, in 3 sections. PITA, it took me forever on a creeper. Last time I ever do that at 60+. Then I used POR-15, not optimal being on your back! Then I roughed that up a little and I sprayed Eastwood undercoating (cans) over that. We will see how it holds up as I plan on keeping my car a long time also.