pittsburghpam::::::I was doing it that way, but I purchased a June Tailor Shape Cut which is a 12" by 12" that has slots cut all across and you just put your rotary cutter in the slots, and you go girl. Then you just keep sliding the Shape Cut up where you ended each time. Also I would like to add in, when I go to square my material up at any time, I use my dh's carpenters framing square. It is faster than laying 2 ruler's down to square. You may have already tried this, but it works for me alot better, but the Shape Cut cuts really straight strips and borders, just make sure when you line that first cut out that it is straight, perfectly lined ,while pressing down with one hand, just rotary cut with the other hand, you don't even have to keep double checking just go, go, go. :)