A Reminder of Why I Coupon

I went to Wal-Greens to have my ink cartridges filled. I can get the black filled for $10.00 and the color for $15.00. I also had a coupon for $5.00 off a $25.00 order. To my HORROR they exploded and they couldn't fill them. I had no idea what to do, so I bought what I needed at Staples. I didn't like the price, but I do get $3.00 credit per used cartridge and 10% of my purchase. I'm STILL not a happy camper. So, this is the reason I try to save as much as I can. So I can spend it on other needed items.