It may seem daunting, and labor-intensive, but hear me out. LEARN TO MAKE YOUR OWN JAM/JELLY.
It's easier and cheaper than you think. At the outset, you'll need to buy a canner and jars ($15-20 total) but these can be reused as you empty them. After that, all you need are lids,
Sure-Jell fruit or fruit juice and a ton of sugar.
THe Sure-Jell package has an insert that has a ton of basic recipies and explains the whole process from start to finish thoroughly. (Don't go for a cheaper pectin product, this stuff works better.)
I did it myself for the first time last night, and it was super easy. 10 cups of mulberries (Free from the neighbors) two boxes of sure-jell ($2.15) and bag of sugar later ($3), I had 10 pints (one and a quarter gallons) of very good jam, enough to last me at least six months.
Or take
this recipe for grape jelly. The ingredients will cost you all of three bucks (esp. ifyou get frozen juice concentrate), but you end up with half a gallon of delicious home-made jelly.