Stainless Steel:
Forgot to tell you- if you have stainless, the best polish is none at all. Stainless looks best and is easiest to re-clean when it is kept clean with Windex. For more serious soiling, straight ammonia works well. If something is really problematic, Cameo stainless cleaner will generally get rid of it; Bon Ami works nearly as well if you can't find Cameo. I do not recommend Bar Keeper's Friend for fine stainless; it is a little more abrasive than Cameo and degrades the gloss (or the brush on brushed finishes) very slightly. Clean is the key on stainless- it really needs nothing else.
Restaurants and delis with stainless equipment often use an oily product called Sheila Shine on reefer fronts, etc. While it makes things look good immediately after use, it has a tendency to look smeary after the stainless surface has been touched a few times. It builds up in crevices, too.