Okay, this one isn't actually an Excel tool, and from what I've read I picked a pretty out-dated programming language to write this in. I originally wrote this in Python, but didn't share it because I knew not everyone had Python on their machines. Not being familiar with a lot of my other options, the project was shelved for nearly a year until an unrelated article lead me to Visual Basic - which works fine for my purposes.
Anyway, back to the file... It was inspired after my former boss told us about the Pomodoro technique for cycling between times of work and taking breaks. I wanted something more customizable, so I built this. When you first open the file, there are 3 prompts.
There isn't an OFF switch, so if you decide to kill it, you'll need to do so from the Task Manager.