I've got a generic excel version of the one I use at the bottom of this page of my woefully outdated website:

https://sites.google.com/site/always...etting-started

I keep three spreadsheets in one doc:

1. Points and Miles - current balances, plus anticipated incoming points and the dates I expect them to show up. This is a little cumbersome, but it works for me.

2. Credit cards - all the pertinent info for current and closed accounts

3. Application history - what I applied for and when along with offer details, links, etc. I also update credit pulls here when I get that info.