[QUOTE=ktbb;8049998]I usually use this technique and when you make the last seam off-setting the sides - it looks wrong, but it's right. I've tried cutting the strips with scissors and it works. However, I prefer to insert a small cutting mat inside the tube and cut with rotary and ruler.
I put the cutting mat on the ironing board, slide the fabric tube over the end and cut. That way I do not make any 'bad' cut while using the rotary cutter.