I like to use the basing spray, getting on the floor to pin a thousand pins is just murder. Spray between the backing and the batting and again between the batting and the top. I usually do half the quilt at a time. I am lucky that I usually have help in "sandwiching" my quilts, and because my DH is a pastor at the church we attend, which is basically across the street (ok maybe 300 yards away) we go over to the church and either lay it out on the floor there or gather several long tables together to lay on top of them. If I have decided to quilt diagonals across the quilt, which I do a lot, I bring a cheap masking tape and use it to tape across the quilt squares so I have a straight line to sew. I will tape the quilts and then roll them on the diagonal (so the middle tape line is in between the rolls) Just remove the tape lines before you quilt that exact spot, it's no fun to try and get the tape from under your stitching. Have fun!!!