I was all ready to show you this yesterday…and my camera cord went AWOL.  Oh, well.  Better late than never, right?  I found these stacking shelf organizers at the Dollar Tree.

(Looking into the back corner of my pantry here, you can see glimpses of our junk food! lol  Thank you to Bekah for helping me get this all sorted out.)

These shelves sort of “hook into” each other so the upper ones stay put.  When you’re not using them, they fold up.  Not bad for $1.  I wouldn’t recommend piling them up with really heavy stuff – we decided that filling one completely with jelly jars was probably not their best use, although we could have gotten away with it, if necessary – but overall I was pretty impressed.