There was a thread quite a while back that I thought was pretty fun and gave me some ideas (that I haven't followed through on... yet!). I thought I would get one going again.
So here's my test kit set up. It's a stock TF-100 case and reagents but I've rearranged so I can fit my SpeedStir in the box along with the K-1000 test block and reagents, sans blue box... and it closes! I also have an extra calibrated cylinder. One dedicated for chlorine testing, the other for the rest of the tests. I didn't like the bump on the bottom of the standard vials when using the magnetic stir bar. I also laminated a chart with CYA/Chlorine levels for reference. When I receive new bottles of reagent, I write the month/date right on the side so I know how old it is.
I'm sure there are much more extravagant set-ups than mine but thought it was worth seeing what's out there!