Keeping track of your game designs:

https://oakleafgames.wordpress.com/2016/02/24/organizing-my-designs/

Copyable spreadsheet: https://docs.google.com/spreadsheets/d/1R94PRs2ypGiB3c08mhUgJmpr-4uOTubn-5xDe2KpvyM/edit#gid=0