Regarding the site that shows you how to make bias tape using pins placed at the exact width you need: I always use both the bias tape maker AND 2 pins. The bias tape maker alone does not send the folds through straight enough to satisfy fussy me, so after the fabric goes through the tape maker, it immediately goes under a pair of pins (which need to be long ones, fairly well secured) and then under my hot iron. I easily do single fold using just pins, but double fold is a big hassle for me without the tape maker. There was and maybe still is another brand on the market that doesn't work as well as clover. If you have not tried it using just pins, though, it's worth a try!