I often get asked at trade shows where I purchased the roll out banner for my business, and the answer is Vistaprint. Use this link to save $20 at Vistaprint.
The roll away feature of this banner keeps it looking brand new, it is light weight, portable and easy to use. Did I mention it draws a lot of attention?
For an additional savings at check out, it doesn't hurt to try the code FIRSTORDER. I used it and saved an additional $10.00 off of my first order.