1. How do you guys clean your rings? I have heard about windex and a toothbrush, the jewel jet steam cleaner etc etc. What works best.
I take mine to the jewelers every six months for my scheduled check and clean. And maybe a couple of times in between use their jewelry cleaner.
2. Do you guys wear your rings in the shower, spa, ocean, pool? I would rather wear mine then lose it, but I don't want to damage it.
Never wear my ring in the shower, spa, ocean or pool. I've heard the chlorine in the pools isn't good for it...don't know if it's true or not. But for me I always just take them off anytime my hands will be in water period. Aslo, don't wear it half the time walking because when it's warm my fingers swell and when it's cold they get loose.
3. Has anyone every lost their ring? What happened?
Well, my wedding band, just a gold wedding band that I wore on my right hand...I lost some weight and went to the recyling bin and was shaking a bag to get the cans out of it and didn't realize until later on that I shook my wedding band off in the bin somewhere!

Went back to see if I could find it but it was impossible...like trying to find a needle in a haystack. I've also flushed 3 diamond & emerald rings down the toilet too...that killed me!
4. When you do take your ring off, do you have tricks for remembering where you put it?
I take my rings off when cleaning house or doing dishes, showering or as I said above anytime I know my hands will be in water. Or if I am painting or something like that. I have some ring dishes (can't think of what they are called) that I put my rings on next to the kitchen sink, in the master bath.
And CONGRATULATIONS on your engagement!