Let's add a little heresy here
I don't use double fold binding, and the world has failed to end. I cut 1½ inch strips, joining them at 45 or 90 deg depending on how short of fabric I am. You can match stripes at 45 deg, it just takes thought (and muttering). 45 deg joins just distribute the bulk from the seams a bit better than 90. To make sure the binding is filled, I trim the wadding and backing ½ inch from the unfinished edge of the quilt.
As BrendaP said, bias binding is for curved edges. You can make your own if you need it.
I never spray baste. Safety pins are fine. Just take a few minutes to smooth things as you work. If it isn't right, unpinning is far less (but still) annoying than unsticking, or pulling out tacking thread. Slight puffiness will probably quilt out, or can be eased out as you go by unpinning and smoothing.
I shall now go and check the livestock behind the settee
in case the quilt police are reading this!