What is the first thing for which you ever saved up money to buy? Today, write about that. And, if you’ve never saved up money for a purchase, perhaps write about that.
(For this, I will definitely write about the money I was saving up in first grade that my friend stole from me during an ill-fated sleepover. A couple of years ago, she sent me a Facebook friend request. I mean, this is an essay that basically writes itself.)