I put a lot of stuff in the freezer - I love to buy meat during sale times and stick it in the freezer for later. I buy butter when it's on sale.... and Cool Whip and vegetables and even flour.
I seal everything in plastic bags that are supposed to be air tight. Far too often I was going to the freezer to find that something had somehow gotten air in it and had some freezer burn. Sometimes I'm able to salvage the product and sometimes not. Then I found some thicker-than-average bags and I'm thrilled to say they work much better! The regular bags I was buying at the grocery or WalMart are very thin and when frozen got quite sharp edges; they were poking each other and poking holes.
DC Sales Enterprises, Inc. sells 4 sizes of bags, and I have all 4! I have so much better luck with these than the thinner ones. I have no affiliation with this company other than I love their product and their service. I have gotten personal (well sort of personal as they know my name and I'm sure they just cut and paste!) letters thanking me for buying and telling me the story of how they started. And according to Dehydrate2Store (I also dehydrate tons of stuff and love this site) if you wrap your packages in plastic wrap before putting them in the freezer they are much more unlikely to get holes in them.
Just thought you'd want to know!