I haven't, I got a supply of blades from the 50% off coupons that some of the chain stores used to offer periodically and since I got my GO cutter and strip, square, and triangle dies which cut most of the pieces I need, I really don't use my rotary cutters as much as I used to. With the cost of blades these days, those dies seem to not be as pricey especially if I get them on sale with free shipping. I never had one of the Go dies get dull so far but I do have to replace the matts and those have gotten pricey. I do have a number of pairs of scissors sitting here that seldom get used.