Fairfax County VA libraries are starting to use those little receipt-printers instead of the old ink stamps. We use it at my library and while I don't run the place, I must say I liked the ink stamps. I like knowing how popular or unpopular the book I was reading is. I like not having a piece of fresh paper to recycle or toss out. I like my book not seeming like a purchase, but like a loan. Of course, we've kept the pockets in the books, where else would you put the receipts?