I was going to find some sort of business and ask them for a piece of cardboard, but saw a big building called F&M Sign Co. Perfect, and I went in asking them for some cardboard. Buddy behind the desk went into the back, and came out a few minutes later with a perfectly sized piece of corrugated plastic sign material. It was exactly what I needed.
So many thanks to the guys down there, on Burlington E, just before the QEW.
In my experience, research, and just talking to hitchers, the average wait time is an hour min, sometimes 2-3. I never wait more than 40mins. Average time for me is 20 mins, but I have yet to tackle the good ol' US of A, and that changes everything I know about hitching.....