I got a new baby bike seat for my bicycle which came with a new rack. The baby seat blocks the view of my taillight which I kept on the seat post, so I needed a new mount to go on the rack. I found a nice design on thingiverse which matched my Cygolite and printed out a copy.
The weather was nice on Sunday so I went for a bike ride down a couple of the bike paths in Plano. They are pretty nice but the street crossings are a pain. There are several unprotected crossings of major roads with no lights.