Does anyone use Source Codes to Track their Renewals?

[Megan E]

I work for a small non-profit Arts Center. We chose CiviCRM last year because we want to connect several of our departments. We use it to register classes, as a membership database, and as a contribution tracker. I would like to make use of the source fields that are on the NEW contributions, registration and membership pages for a source code. It would be helpful if it came up on the membership renewal page as well. Tags seem like an inconvenient option. We are going to end up with a lot of tags and they will all export to a single Excel cell!

Does anyone use source codes in CiviMember to track renewals in a different way?