Freeze tablespoons of leftover Tomato Paste. Once frozen solid, transfer to a plastic bag and return to freezer. Pre-measured and ready for future recipes.
How to store fruits and veggies to keep them from spoiling
WD's Guide to Storing Every Type of Produce
HowTo: Store Fruits and Vegetables.
Great way to get all that fruit off of my counters, how/where do you store yours?