I see your verse, and I raise you another verse.

On days where I don't just sit down to the piano and burst into a new song that I'm writing as fast as I can sing, I'll do some writing exercises. Here's one. Take a perfectly good song that has several verses and a chorus and write new verses to it. That's hard to do. But it gives you an idea of exactly what the original writer was facing. Or you can imagine you are co writing with the original writer and he's just suggested a verse and now you are going to suggest your own. You may even come up with a verse that is indeed better than what is on the record. At least you may think so. It doesn't work so well trying to write a new chorus though because all the verses point to the chorus. However, you can form a variation on the chorus and come up with your own hook idea. Heck, if you keep going you may have your very own completed song. I may be able to burst into song after all!