Sensor Swabs and Eclipse. And practice. I don't enjoy sensor cleaning, but I've gotten reasonably good at it.
Yeah, and I find that the Visible Dust products (electrostatic brushes and chamber clean) are good additional tools to use in conjunction with wet cleaning. It's possible with these products to keep a 1ds functional, though the process is indeed not much fun, not 100% safe (scratch wise) and nowhere near 100% effective. I hope the complaints grow loud enough and wide enough so that Canon won't do a 1ds Mark III 22 Mpixel camera in a few years with still no happy solution to the lame sensor contamination control situation. Canon basically has their head in the sand (or maybe a worse place where the sun don't shine) where sensor contamination is concerned. If it works OK in a Japanese clean room, you'll just have to settle for whatever results you get in real life.
Sorry, that's just not good enough and I'm not hustling to get the money together for a 1ds Mark II. I'd also like to see comparison pictures of 100% crops taken with supreme quality prime lenses to see just how much those extra Mpixels is actually buying you. I rather suspect not much, and certainly practically nothing at all if you're using Canon ultrawide lenses, which aren't even quite good enough for the original 1ds.
I hope some hands on critical testing will soon be done and results shared. Just the increase in pixel count may not be worth all that much if you look through all the hoopla and marketing hype and the excitement of a bigger number. We need very careful comparisons of image quality.[/font]