One of the things I hate when camping is having to find ice every couple of days. A friend of mine turned me on to a cooler insulation insert called the KoolerCap. She told me that my ice would last...
I precool the cooler by putting it in the deep freezer for a few days. Holds the ice much longer. Also, set the cooler on something other than the ground and in a place other than in the sun. Ice last longer.
Even though its likely a spam post... still good to share PRACTICAL experiences.