What can I do that's cheap?

I have been in the mood to work on my car a lot lately and was wondering what I can do this week that's cheap and will make my car look better or run better. I am trying to stay under 100 bucks and was thinking along the lines of rebuilding the front drums or taking off the side trim.
Possibly running an electric pump also. The interior is literally perfect so nothing on the interior needs attention. But here are some pictures of the exterior.

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I know this is a really broad question but I am open to any and all ideas and I will post pictures of whatever I decide to do. I'm just looking for some ideas.