While reading my November/December ReadyMade Magazine, I was excited to find the following tip:
"If you've made cookies that end up being hard as rocks, just stick them in a resealable plastic bag with a slice of bread. Let it sit overnight. The next day, your now super-soft cookies will have soaked up all the moisture from the bread, fooling everyone into thinking you're a cookie-baking genius."
I am definitely trying this out the next time I make cookies since this always inevitably happens to me.