Where to get good deals on coupons (helpful Hint!)

I personally buy coupons in bulk on ebay for $1-$3.00 with shipping, I bought 20 of the $4.00/1 Proglide razor and it paid off today when I bought 18 of them for 1.00 a piece! Look on ebay to buy in bulk (20 plus coupons of the same item) it really pays for itself!