I've used the new(er) Reynolds vacuum & bags to seal up a few things. They are about $10 at places like Target or Wal-Mart and come with batteries. The bags come in a few different sizes and are re-usable. Latest thing that I packed was a shirt and undergarments for storage in my locker at work. According to Consumer Reports it works good for keeping away freezer burn (its intended purpose). If you are just wanting to seal a few small items you might try this, but if you want to seal lots and/or big things, you will probably need a larger system.

Roger