have just had a new kitchen and have a stainless steel sink, my old one took a battering and I didn't really care what I used so long as it was clean 
But now after five yrs of saving and getting a lovely kitchen I want to keep it as nice as i can( I know it won't happen with 3dc and dp but I can dream!). I've tried jif stainless steel cleaner which is giving a lovely shine but not getting out the tea stains.
Any ideas??