My story will be of a back-and-forth kind. That's why I needed a spreadsheet, but I don't have Excel (I wouldn't know how to use it, if I did anyway.) So I found this spread of spreadsheets. I'll print out one and keep the timing on it.
If anyone else is in my shoes, here is a link:

https://www.google.com/search?tbm=isch&q=blank+spreadsheet&chips=q:blank+spreads...