Usually after the completion of every build, I will do a deep clean of my bench and my supplies. I put all of my tools back where they go. I do a check of my supplies; am I almost out of glue, certain paint colors, misc. supplies, etc.? I clean up all of the bits of sprue and sanding dust, stuff like that.
For me, it is a good feeling to have a clean bench. Good luck on your next build!