Houstonians are car people, and if you're driving downtown, here's some information about where you can park it while you stroll about:

Visitor Parking Map (pdf)
Theater District Parking
Parking Garage Spreadsheet (address, parking rates, contacts)
Parking Lot Spreadsheet (address, parking rates, contacts)

Valet parking is also available at selected entertainment venues.  Call the establishment to get further details.

And don't forget, on-street meter parking is FREE after 6 pm, Monday-Saturday and all day Sunday. Be sure to always double check though and read the parking signs!!