Stuff to save time.
Pour some sugar on me
Place a slice of apple in hardened brown sugar to soften it back up.
A couple of fruits
Never store an apple near a banana unless you want to ripen the banana in a short period of time.
Keep it cool
Keep a cooler in your car for perishables. That way a stop at the market doesn't have to be immediately followed by a run home to the refrigerator.