I Have a Walking Foot
Actually I have two. (rim shot) But seriously....
I have heard others speaking of needing a walking foot for this or that, and I just looked in my owner's manual for my Brother SQ9000 and it is listed and I have it. That thing looks more complicated than the rest of the machine. (smile). I will have to play with that and see if it will make a difference when I want to do a project in the quilt-as-you-go method.
There are other things listed as well. I've got feet for everything. I must move out of my comfort zone and practice with some of these.