re: Passport renewal locations

Bluebonnet post office is open a half day on Saturdays (actually a little more than half if I remember correctly). No appointment needed. We brought pictures and had the forms all filled out but I think they can take the picture there for you as well. If you have everything filled out and in order it's about a 5 minute deal. They verify everything, sign off where they need to, take your payment and send it off. Pretty painless.