I have been lazy but also too busy to do my quarterly maintenance on my sew machine. It runs so great that I sometimes take it for granted. Since I do most of this myself it just seems to be put off until a later date. The same with my computer, my husband reminded me just today that I need to go thru and delete files since my available space on the C drive was getting low. I tend to focus so much on creating and selling that I forget that these maintenance issues are just as important.