Foodsaver says vacuumed food will last up to 3 times longer than normal. I use their bags and the containers and have kept stuff for a week or so with no problem if it's sealed right.
I use the lunch containers for fridge storage. They are great.
Head Cook - Team BigBarryQ
Webers: Smokey Mountains (2 18.5" and a 22.5") - Performer 22" Silver - Go AnyWhere Charcoal - Smokey Joe Platinum - Craigslist Silver Gasser
BBQ - Bring Beer Quick!
In the Land of the Pig, the Butcher is King!