X3 on Foodsaver.
Got mine at Goodwill for $7, looked like it had never been used. I use it to prepare meat for freezing, package dried fruits & veggies, and to freeze single serving meals for later use. Bags are expensive, but less porous and tougher than ziploc bags. Tried the manual ziploc air pump and it just didn't work for me.
I have tried using mylar bags with the Foodsaver, but haven't gotten it to work yet.
- Spiff