I think you are supposed to mix it in with your coffee.
I've only done the drag rag thing once. I didn't have any success with it that day. I found an old stretched sock of mine and pulled it up over my boot. Pull it up as far as you can so it won't come off. Now, just pour some pee pee on there and start walking. Don't be afraid to really soak it in the sock. I would take the sock off about 15 yards or so from the base of your stand so that potential buck doesn't follow it all the way to your tree. He may stop and scratch his head for a moment allowing you to get a shot. Remember, try not to get any of your scent on the ground when putting on or taking off the sock. I guess you could also hang the sock up near your tree somewhere to get more scent blowing around.
Good luck! You make it sound as if you're desperate.