Got my first top spread out on the floor yesterday, then thought, I wonder how close together I should pin? Ended up about 6" apart, alternating directions vertical/horizontal for better control. It seems to have worked okay for this pattern. Does it depend on how complicated your blocks are?
Also -- don't laugh -- how small does a scrap have to be to qualify as "garbage" instead of a useable scrap? Less than 2 x 2? Or 1 x whatever? (What I can use in a quilt may be totally different from what's useable for clothing/dressmaking).
I've been watching and love this site, have used a lot of your suggestions, but couldn't come on yesterday or I wouldn't have gotten the top done!