Using a trainer and a pulse-oximeter, see if you can get your oxygen saturation down to 93. I've tried it, couldn't do it, but I understand that strong riders can. Stimulates EPO release anyway. Jumping jacks at 10,000' will do it. The pint of blood is the easiest. I used to donate plasma which always boosted my hematocrit, so I guess also stimulated EPO release. They take one's hematocrit before the donation, easy way to keep track of it. Plus they pay you. It's all good.

The 10,000' anecdote: my wife and I live at sea level and were doing to do a 10-day backpack in the Sierra, including an 11,000' pass. So we spent 2 days at Camp Muir, snow camping. Didn't climb, just hung out, exercised, and watched the fun. My wife has always had crappy lungs, but we dropped a fit-looking male hiker on that Sierra pass climb. Definitely worked.