When we moved from SoCal to rural TX 4 years ago, the DMV and DPS experience proved to be very enjoyable, compared with California. Since we had a current driver license from another state, the Texas written test was waived. We needed an eye test, a birth certificate and registrations for all vehicles we owned with proof of Texas insurance for each. That's it.
On renewal of registrations, we could do that by mail, but the ladies at the Burnet County TX Assessor-Appraiser Office are so nice (and there is NEVER a line) that I always go in person just to remind them what a difference Texas makes.
Ralph