Thanks for all the great replies and advice. I live on the edge of Ballston/Waycroft, so I definitely will take the Custis -> MVT. From there, sounds like I have a couple good options either Jefferson on the Mall, or the route dbb suggested over the fish market. I am very familiar with Hains, but never realized there is a bike/ped lane on the Case Bridge which will take you over the Washington Channel. That seems like the route that would best avoid tourists, etc. It is great, however, to have so many doable route options.