I think most people drag their brushes against the edge of their workbench but that causes alot of wax dust.
Since I tune my skis in my kitchen because my apartment is so small, I run the nylon and horsehair ones under extremely hot water, let them dry, and then the wax flakes off in larger chunks on my roof.
stick the brush in boiling water. wax melts before 100 celsius (should atleast...i think boiling point for wax is like 80 or 90 celsius) so it comes right off [img]smile.gif[/img] i do that with my scotchbrite pads too.
If you are collecting large quantities of wax in your brush(es), you are doing something wrong. Wait for the wax to cool completely. Depending on amibent air temperature, this could be a few hours. Then scrape all the surface wax using a sharp plastic scraper. Sharpen the scraper regularily with a file to keep a fine edge. Use a brass brush to get the wax out of the structure and a horsehair brush to polish the base (or a nylon brush to compromise). Now when the brush(es) is(are) used, there should only be wax dust in the bristles which can be shaken out.
Scotchbrite or Brillo pads are not for finishing the base after waxing. The are best used pre-waxing to clean the base after filing, filling and restructuring.