If you buy Celebrity Slim from Priceline, join up for the priceline club card. It's free and you get points for $ you spend. Then at the end of the quater, you get a cheque in the mail for use at Priceline. It's worked out on a % thing, but it is worth it to save a few $$.
I don't remember the % thing though, but last quater I got a cheque for $4.60 and didn't spend that much at priceline...just some things like hair colour, makeup removers, one mascara..can't recall spending over $100.00 that's for sure.
They charge $39.95 for a box of celebrity slim. I saw it the other day...can't remember what rubbish I was buying that i don't need though