I cannot get down on the floor to baste so bought a $59 cutting table at JOANNS. It is only 36 inchs wide but I center the quilt on it and pin then move it to each side and pin. I bought those plastic clips that hold the quilt to the table but you can use those big black clips. Got those at the dollar store. The plastic ones you use on the backing then put the batting and top on and clip with the black clips. I do stretch my backing not the batting, just smooth it out nice. I do stretch my top a little.
It works every time and no backaches. No folds either.
I use the bent quilting pins and got the plastic covers for the pins with a 50 percent off coupon at Joanns. You can clip them with a crochet hook .But I bought the hooker with the wooden handle. Now basting is a breeze.