I use Knight and Hale Doe Urine (not esterous) as a general cover scent...dribble a little on the soles of my boots...
During the "pre-rut" and "rut" (depending on moon phase around the 1st of November), I use HS Scents Sex Wafer as a cover scent (hang 2-3 about twenty yards around my tree stand) and drag a Knight and Hale double drag line with Tink's 69 and hang in a bush about 20-30 yards away...