My husband came across this article on LifeHacker:
http://lifehacker.com/mason-jar/Granted, it does require refrigeration, but it works! If you can discipline yourself to go to the grocery, grab a bunch of fresh veggies and fruit - then get home, clean, and disperse them between your mason jars and seal them up, they will be good for over a week. I've done this with salads, cut up carrots, bell peppers, etc and even made my own little fruit salads. The hard part is keeping up with it. And, of course, your fridge will be rather full of jars - but it's great to know you can grab a few jars and you're set on food for the day. And, of course, you can do this with your crock pot cooking items (just be careful of the hot glass). We tend to do canning with soups.
Granted, the purchase price of a vacuum sealer and the jars are an investment up front. We already had the vacuum sealer from years ago, we just needed to buy the mason jars. However, I will say, when we are on it, it really does save money from veggies going bad and keeps you from running out for fast food on dinner break.