Cleaning kits? NOT!
Deal with oxidized vulcanite stems with magic eraser, followed by mineral oil. Some report soaking in Oxyclean followed by buffing with a scotchbrite pad or 000 steel wool is the ticket.
Acrylic should require no maintenance. Clench/chatter marks, well that's up to you to figure out. Either don't or use the softie bits.
Shining up the strummel on smooth finishes, well I don't bother generally. Maybe did it once or twice. I prefer a matte finish anyway.
Reaming the cake is most important to me. Apart from scraping the bowl with a tool (pipe nail, etc) after each smoke, when it gets to be more than a thickness of a dime I use my Castelford reamer. Similar results can be achieved with other means.
Use a pipe cleaner regularly. Perhaps after every smoke (or during). That will prevent build up of tars. Occasionally use Everclear, Isopropyl 90% or any other high proof alcohol on the pipe cleaner and you should be golden.
This is what I do and has seen me in good stead for many years.
Cheers,
RR