Mardi gras as much as you can
Mardi Gras is not just for New Orleans, Houston has many parties all through the season, and Galveston Beach(30 minutes from Houston) has the jam-packed streets, parades, bead throwing, drinking crazy party scene every weekend through ash wednesday.
Shopping amongst the Nice Parts o' Town!
River Oaks Shopping Center is situated where else, in River Oaks! River Oaks happens to be the nicest, richest area in Houston. So when you go here, you will see some money! But despite it's location, and it's really nice decor, this is not the shopping centers of all shopping centers in town. No big department stores here, but several of your smaller retail shops such as Ann Taylor, Jos. A Bank, and Chico's. A few nice restaurants like La Griglia and Tony Mandola's, a couple of decent bars, and the old River Oaks movie theater are also here. So I wouldn't necessarily recommend going here just to casually walk around. It is a very nice area, but there are better places like the Rice Village or the Galleria for that.
All the dim sum favorites for a very reasonable price. Its decor is a little rustic but it's big enough that there's never a wait and very casual. The best time to go is Saturday or Sunday mornings around 10-11 am when it's full of people to get the full experience. Get an iced coffee with milk with your dim sum. Also, try the porridge!
An institution in the Clear Lake area
Frenchie's is a favorite among nearby NASA employees, including astronauts. Everybody seems to know everybody at this place. Reservation recommanded on Fri and Sat nights. Nice family atmosphere. Tons of autographed pictures of astronauts and shuttle crews on the walls.
Family owned, the cooking is inspired by that of the Isle of Capri in Italy. Very nice pasta and veal dishes. Be careful, ask for the price of the specials before ordering any, they can be very overpriced for what you get. Avoid the lunch buffet, it is not near as good as the evening meals and atmosphere.
The same family owns another restaurant in the area, Villa Capri. The charm of that one resides in the beautiful tropical garden along Clear Lake where the tables are set. The food is not as good as at Frenchie's and definitely overpriced. It is located 3813 NASA Pkwy, more to the East compared to Frenchie's.
Hermann Park Area
If you don't want to drive an hour outside the city to enjoy the outdoors I recommend Hermann Park. The park is very clean and offers many playgrounds and picnic areas complete with barbecue pits. Inside the park you will find a lake where paddle boats can be rented, a golf course open to the public, Miller Outdoor Theater and the Houston City Zoo. On the Northern border of Hermann Park near the main entrance you will find the Houston Musuem of Natural Science and Butterfly Exibit, The Planetarium and the IMAX theater. Hermann Park offers many relaxing, fun and educational options......trust me you won't be bored.