It just occurred to me that I won't be able to take my game mat to GaryCon. It's too long to fit in my bags, and when rolled up it could easily get lost on the plane. I forgot that I got around this issue last year by having a set of disposable grids printed on poster paper. But I used them all up gaming last year.
While most games don't really require the use of minis and mats to work, my Friday morning game does since all it is is a big combat for about a dozen people at a time. So now I need to figure out how to get a grid laid down for one game without shelling out a lot of money.