Freeze them,.

Should be able to find some hot bath canning instructions for preserving them on a shelf (or in the fridge) in mason jars.

A half cup to a cup of fresh or frozen berries in a pan with a few table spoons of water, medium to high heat. Sugar to taste. Heat until boiling constantly stirring. Cook until its thick enough for you. Ta-da! Syrup!

Good in smoothies and in oatmeal.

Make some pancake batter, add some more flour to make it a bit thicker, drop some on a hot skillet. Let it firm up a bit then drop some berries and sugar/honey on top then cover with some more pancake batter. Flip it over. Poof, you've got some fruit fritter desert thingy.