I've been working on designing my program, and the size I like the best is 4.25" x 10". It's basically an 8.5 x 11 sheet cut in half vertically, with a little off the top.
I don't have a trustworthy setup for printing at home, and printing from Fedex Office is surprisingly expensive if I want color on both sides.
Does Vistaprint (or any other online printing places) offer cardstock printing in these sizes? The closest I've seen is 4 x 9. I can't seem to find anywhere to just print 8.5 x 11 cardstock online!