Although I dislike the idea of plastic bags being discarded, I see the value of this tip ie when cooking for a crowd. This can be prepped the night before as long as you have freezer or cooler space. (Squish the air out of the bags before sealing.
HOW TO KEEP YOUR FOOD DRY IN A COOLER. Place ice and cans at the bottom of the cooler. Place cooling racks on top of the cans. Now you have a nice dry shelf to place food in. Great idea for traveling also!