i hate getting down on the floor to baste a quilt too. The arthritis makes it so hard to get up and down. I have taken quilts to the church and pin basted them there but when not available or time pressed I have done it at home without getting down on the floor. Since I pin baste my quilts, i just strip my bed down to mattress, spread my backing evenly across and start layering with batting and top. I pin in center and work outward on one side, then walk around and do other side. I sometimes get it pinned to mattress but it is easily corrected.. Everything stays in place and doesnt shift so quickly get it done. Remake the bed when you are finished-heck,you have to do laundry anyway so strip the bed on laundry day and pin baste. Nothing like multitasking!