Here's one of those crazy hints that I WISH I had known years ago. :) For years I've stored my potatoes and onions together in one bin, and (duh!) always wondered why my potatoes kept going bad so quickly.
Lo and behold, a friend tells me that you shouldn't store potatoes and onions together, because they cause each other to go bad. Now that I store them separately, both the potatoes and onions stay fresher (and usable) longer, and I'm very happy about that.
Thought I'd pass the helpful tip on to all of you readers!