This should make it up to the top 10 regrets list: Cut myself a fringe! :(
Was washing my hair yesterday and I had a sudden thought: my hair looks too straight, and it's getting kind of flat at the top, maybe I'll try a fringe or bangs. And so today I upped and went to take a pair of scissors, cut myself a fringe and immediately regret it!
Oh well. What's done is done, and thankfully, it'll grow back! :(