I gave an internal training on ESD last year that had tribology tables and more info... Might be able to dig it up but it targets other engineers, not audiophiles. It's at a pretty low technical level so might be interesting anyway.
I forgot to mention what a bad idea dryer sheets are -- the chemicals could leech into the mat and the record, besides what Gary said (no real help to begin with). I have no idea if antistatic spray would cause issues; Gary, do you know? Not something I have used. We use different static control measures at work, most not well-suited for home, although an air deionizer blowing over the TT should work wonders. Just not cheap.
Colorado is very dry so ESD (static) is a huge problem. Our lab targets are 30 - 40 % RH IIRC.
At home I just use a Walmart-bought room humidifier, the cold-air type (not a "steam" unit), with a cheap hygrometer/RH dial (part of a $10 clearance indoor weather gauge, from the same Fine Shopping Center
). In the past I placed an antistatic floor mat (available from any number of places) in front of my equipment rack (w/TT), with the ground wire attached to the (metal) stand and another wire from the stand to the safety ground of the outlet. The TT ground connected to the preamp, and I pulled the preamp's ground to the stand as well, creating a quasi-star-ground scheme. That actually helped quite a bit.
I decided I did not like felt mats. Not only are they more static-sensitive, but over time little strands/pieces break off as fine dust particles that can stick to your records. Mats are a source of endless debate, but I settled on a fairly soft rubber'ish mat that worked well for me.