Has anyone done anything like this?
Was thinking of doing something like this but figured it might ber best to ask first.
Xcel file for keeping List of Cards etc
Have you tried this app?
https://plus.google.com/117131374075828331639/posts/6bjAbuBW5cx
I made my own, if only because it does exactly what I need it to do and nothing I don't need it to do. Most apps and online list builders seem to support keeping track of your stuff to some degree, I'd start by looking at all of those before rolling your own.