The little butterfly screwdirvers so you can take off your needlplate and clean and oil under the bobbincase. My rule of thumb is after every 8 hours of sewing, same goes with replacing your needles. This is very important so you don't mess up your timing with a slightly off or worn needle. So lots of extra needles, you never know when one might break-usually when the sewing shop is closed. Sewing machine oil, know your machine manul so you can maintain your machine. (saves trips to the service department) Lots of good quality thread white , black, grey or tan. Colors are for when you are quilting on top or sewing on your binding.