I get emails and coupons from Hancocks and JoAnn's when they have sales I buy a couple of each 28,45,60. But I don't go through them too much. I clean the blades before and after each use. Often if you just clean the blade of excess lint, I don't wait till I'm down to my last blade though. No further than I have to drive, I just go get them. But I buy with coupon and in quantity. Also Hancocks has 15% discount on Wednesdays for seniors. If you're not a senior but know one take her shopping with you and have her get them for you. May want to put her on a mailing list.