I've never seen a pool hall that doesn't offer some kind of powder/talc for the players. Cleaning the tables is pretty common in most pool halls.
With that said, I haven't used either for the last 20+ years. Just outgrew the use of the stuff. My hands are dry to begin with and stay that way. Just lucky I guess, my hands don't get moist anymore.
When I finish playing, my cue gets a good wiping down with a clean napkin or paper towel. At least once, maybe twice a year I start off with come 600 grit sand paper to get the blue out of the shaft and then use 1000 then 1500 and finally 2000 to make the shaft shine like a mirror. This closes the pores of the wood for awhile, almost like burnishing your leather tip.