I just use a clipper on the legs, and trim down the undersides of the forearms into as wide an area as possible (It has all those beautiful veins right there..lol). The GF laughs at the trimmed down legs, but likes the bod..so she deals with it. Insides of thighs, back of calves, inside of forearms, and shoulders are my favorite application spots...with a 15% mix of DMSO..you HAVE to rotate areas..or you end up with a third degree burn..lol.
Also..a point..with the transdermal mix on the arm..DONT stick the arm out the window in direct sunlight when driving while the stuff is wet...it is sunburn city..even in the chill of fall..lol!