Do 2-3 washes with a couple of table spoons of kava (or however strong you like) and steep some damiana and a few tea bags in roughly 1.25 litres of boiling water. Combine the two in a pitcher and put it in the fridge for a few hours.
Not only will the damiana and tea entirely mask the kava taste and actually make it quite pleasant to drink, the damiana seems to amplify some of the effects for me (especially with respect to sleeping well).
I've tried coke, heroin and speed once or twice. But I smoked weed everyday for 20 years. On weekends i started as soon as i woke up till i went to bed. I cut it cold turkey and its been 8 months since i took the sh*t. Best decision of my life.