I've seen this mentioned in this forum before, but...

What would be the best vacuum packing system for large, bulky stuff?

I've got a couple of wool blankets that I'd like to store under the bucket seats of the pickup, and then there's that bulky fleece jacket that goes in the BOB.

I've tried the "whoopee cushion" bags where one squeezes the air out through "one-way valves". These may be fine for the traveler whose going to be unpacking in a day or so; but over time, air creeps back in and these things self-inflate.

I've seen the bags that use a vacuum cleaner to suck the air out, are these any better? What about the food sealers? Are these any good for large items?

Thanks, -mark