GET YOUR MIND OUT OF THE GUTTER! Picnics have one colossal problem – wash. You heard me, wash. If you don’t bring a blanket, you have to wash your pants. If you do bring a blanket, you have to wash the damn blanket. Everything gets covered with grass, dirt, sticks, leave and all other manner of natural accoutrement. You want sandwiches; DO NOT WANT wash. Fortnum and Mason solves this problem with the Wax-Backed Picnic Rug. Apparently it works in the Winter too, but picnicing during the Chicago Winter is a death sentence. You try it and get back to me.