Wendy,
I didn't do any kind of buffing or exfoliating before I used the tanner - I'm too lazy :D But then again, I'm lucky enough to not have dry skin. Anyone with dry, flaky skin would probably need to exfoliate before using the tanner. I also exfoliate my elbows about 2 times a week (I use a facial scrub at the same time in the shower and the excess is used on my elbows) so that probably helps. I did try to go lightly on the knees and elbows as the instructions said. I used it for the second night last night and I still really like it.
We have a store out here called "The Container Store". It's my favorite store in the world!! It's huge and has whatever you need in the way of storage solutions and has a great travel section. Anyway, I'm hoping I can find the inflatable hangers there. Do you have that store there? If Walmart has the hangers, I'm sure it would be a much better price.