After reading a post in Carisa's blog, Vintage Red about paper options, I went with what she's calling architect sketching paper.
I don't know if you can read the label, but it says Elmers No. 100 Designer Series Parchment Tracing, 50 yds x 24 in. The guy at Binders Art Supply thoughtfully ignored the "please do not open" labels the paper department had on each roll to show me how the paper looked and felt.
I'm ready to start on this semi-fitted (thankfully) dress from a 1960s pattern. I've got a great knit jersey that's just waiting to be cut. I'm going to do the short sleeve version.