I measure the fabric as I cut it and that's about it. Oh, and measuring for borders, I've finally started doing that.
Binding...I just make excessive amounts of it and toss the extra into my 'scrap binding' bin for use on scrappy quilts and pot holders. I love doing scrappy bindings. I cut my binding at 2-1/2" so extra binding can be ironed back flat and used in scrappy jelly roll type patterns too.