A cheap and effective alternative is to >tie down to a
concrete block or two. I don't think I've ever seen one of those
blow away in the wind. ;-)
While this might work, I see at least 2 problems. First, they are
ugly and unprofessional looking. Second, I sure wouldn't want to bang
my shin on one or watch a customer trip over one. Plus, I wonder if
the weight is sufficient. I think you should have 30 pounds at each
corner as an absulute minimum. Another factor to consider is the tent
itself. My Light Dome is much more resistant to flight than the
ubiquitous EZ-UP canopies I see so frequently. I seldom use my
weights anyway, because the Light Dome has 2 other options for
securing the tent if you are on grass, and I'm already dragging
around enough weight as it is. I still like Judy's option of the
steel weights, even they are pricey and more challenging to make.
One of these days...