Hey people.  So I saw the infomercial a million times and finally gave in.  Ordered some space bags off ebay since they were cheaper than from the manufacturer.  Didn't read any product reviews or google "space bag" until after I got them and tried to use them.

Guess what?  THEY DON'T WORK!  I tried all the different bags I got in case I just had a bad one (or two).  They don't hold the seal!  I put some pillows in the bags, sucked out the air, and let them sit.  Within 2 days, they had completely inflated again.  Such a bummer.  They still make good storage bags, but they are not completely airtight and will not stay crunched down like the commerical shows you.

So once this happened to me, I did a google search and found a bunch of other comments and reviews from those that had the same problem.  So I knew it wasn't just me.  I also saw comments that the zipper on the ziplock portion will often slice or cut the bag if not held properly, thus totally ruining the bag.

So beware!  They aren't as awesome as the commercial makes them sound.

Good luck.