I would have at least visited museums and the likes in cities I can’t afford to visit, as well as making food with all the tasty high quality ingredients I can’t afford.

Maybe drive around on some expensive motorbike just to see how it feels. If my financial situation at the time was especially dire, maybe take a “loan” from a bank somewhere before unfreezing time.

You’d have to be a saint to have that power and not do anything illegal. But one thing I would never do is fuck over regular people, only corporations and big businesses. After time unfreezes, those can recover from whatever I did and I doubt I’d but a significant dent in their profit margins, but regular people would have to live with the consequences of what I did, so that’s a no go.