What do you do to keep track of your beer money earnings?

I recently got back into doing MTurk and I just got approved to do Prolific a little more than a week ago. I also have apps on my phone that I've been running for a few years, but I haven't been keeping track of my earnings until now. I figured I might as well start somewhere.

How do you organize your earnings? Through a Google/Excel spreadsheet or some type of app?