A Pinner said: one of the most useful things I learned in culinary school was how to cut melon...repinning for those people who still don't know how! I started cutting my watermelon this way and no longer dread it!
When you get your berries home, prepare a mixture of one part vinegar (white or apple cider) and ten parts water. Dump the berries into the mixture and swirl around. Drain, rinse if you want (though the mixture is so diluted you can't taste the vinegar,) and pop in the fridge. The vinegar kills any mold spores, pesticides and other bacteria on the surface. Raspberries will last a week or more, and strawberries go almost two weeks without getting moldy and soft.