Having just completed my cruise last week, here is some more specific information.
We took Lyft to the terminal, and they drop off right at the terminal. When we disembarked, the prices on both Lyft and Uber were extremely high. So we walked out of Terminal 2, went about 1/4 of a mile straight out of the terminal (crossing one street) and joined about 100 other people sitting and waiting for rides. Relatively easy, even with luggage. We then priced out both Lyft and Uber, and since we were willing to wait 45 minutes, the price to Hobby Airport was $50, versus $150-$200 if we were in a hurry. Worked very well for us - but our plane was a little later in the day, so no hurry.