Back to Terrie's comment of Support Hose:
Support shockings / socks / whatever are the greatest invention since wheels!
they've kept me going at many exhibitions and fairs during my past fifteen years of organizing our company's exhibition booths.
Also: when you have a chance for a lie down before/after dinner: lie flat on your back and rest your legs straight up against the wall for five minutes or so. Does wonders for getting the blood flow back to normal
Also nr. 2: shove a rolled up pillow under the foot end of your mattress, so that your feet are elevated a few inches
Any of the three work well, all three combined allow you to enjoy your second, third or even fourth day too!
wish I could join you, until a week ago I was hoping to go to the patchwork Europe in STE. Marie this weekend, but as I was I'll all last week, and still patchy, not much chance for this year
Enjoy Houston!