I pick a couple of days where I don't have to do much because I am gong to be to sore to move. I glue baste on my kitchen floor with my knee pads on. I roll up my back and top (smaller quilts) on round pool noodles secured with straight pins. I then roll out my back and tape it to the floor, spread out the batt and roll out my top. If everything looks good, I roll up my top half way and glue baste half at a time and roll it over the glue. I do the back the same way after flipping over the sandwich.
Makes me shudder to think about doing another any time soon but I have another top ready to sandwich.