lol - my mom always ate frozen grapes when she was dieting.
I googled "freezer burn" after throwing away yet another bag of groceries. I ended up on some lady's video talking all about how to avoid it, and her main point was that you don't want any air around the food. Apparently, your freezer changes temp all the time, and it's enough of a flucuation to cause the air in your packages to thaw and refreeze, and the resulting ice crystals are what cause freezer burn. Who knew
Anyway, she was all about using heavy wrap and vacuum bags (of any kind - this wasn't an ad). She said the absolute worst way to freeze is the way I've always done it - buy those trays of meat, realize at the last minute you won't make that dish, and throw it in the freezer still in the flimsy store wrap.
So I got those ziplock bags with the little air pump and have been using them for six months now. What a difference! Not one freezer burn, the food is way fresher, and it's easier to defrost.
I didn't get the all-out vacuum seal program b/c we don't have a big freezer, and this was a less expensive way to and works fine for me. It actually paid for itself pretty early on, due to no more wasted food.