I found something neat at wallyworld the other day - "freezer jars." They're not glass, they're heavy-duty plastic (BPA free) with sturdy plastic screw-on lids. The package says they're good for freezer jams, desserts, sauces, single portions, snacks, etc. But you could use them for all kinds of storage purposes. This photo shows the 5 jars that came in the package - three stacked for storage, one with a lid on, and one with the lid seperate. They're about the size of small jelly jars, 8 ounces.
Here's a recipe that was included on the back of the label, which says it makes about 5 (8 oz.) half pints.
FRESH AND EASY JAM
You will need:
4 cups crushed fruit (apricots, berries, cherries, grapes, pears, plums or other tender fruit)
1-1/2 cups sugar or Splenda* No Calorie Sweetener, Granulated
1 pkg. Ball* Instant Fruit Pectin
1. STIR sugar and pectin in a bowl.
2. ADD crushed fruit. Stir 3 minutes.
3. LADLE jam into clean jars to fill line. Twist on lids. Let stand until thickened, about 30 minutes.
Tip: When using frozen fruit, thaw in the refrigerator just until soft enough to crush with a potato masher (some ice crystals will remain).
The recipe says to refrigerate up to 3 weeks, or freeze up to 1 year.
The recipe also shows a website called FreshPreserving.com