When I'm cleaning up an estate, I have my favorite tools:
shank brushes - rather than get the overpriced shank brushes offered at tobacco shots I'll just buy a bottle brush set, as I've found use for different sized brushes in doing cleaning.
pipe cleaners and LOTS of them, tapered bristle, regular, fluffies. White Elephant brand when I need something with a stiff wire spine in it. BJ Longs for the rest.
Alcohol for scrubbing out the gunk. I'll use warm water for maintenance, but for the initial scrubbing out it's alcohol.
paper toweling
cotton balls if I'm going to do an s/a treatment
dental picks for hard to get areas of the mortise
a glass retort for doing a boiling alcohol flush with extreme cases. Not for the squeamish or those who can't stay focused.
glass paper for sanding down the shitty cake in the chamber. Wrap it over a piece of 1/2 inch doweling that's been beveled, or some other shape that is similar
If looking for a reamer, try and find a Pipnet. The Castleford knock off is a cheaply made piece of shit.
Micromesh pads for polishing the stem.
Some use toothpaste, so try other methods before going to the pads.
Simichrome for metal parts and sterling bands
After everything is cleaned and as polished as it's going to get, I'll use either Halcyon or Paragon microcrystalline waxes, literally rubbed on with my hands, no cloths, to add the final luster.
Here's a BEFORE and AFTER: