I write 2-3 checks per month on average and they are all sent out via the US mail. I only use debit cards in retail stores. I don't mind if people are writing a check in line in front of me at Costco or the grocery store as long as they are prepared. I was behind someone last month with a huge order. She watched every single item scan to check the price. The problem was that at my supermarket, the item scans at normal price and then the discount is taken off at the end of the total transaction. The cashier explained that, but the customer kept stopping her at every item. "That one is on sale!" The cashier was frustrated as were everyone behind her in line. Then at the end, the cashier had to show her that the discount was actually taken off every sale item. At that point, the customer had to dig through her purse, locate her checkbook, borrow a pen from the cashier and start writing out her check. I was doing my best to exhibit patience, but I was fuming!