I work over at Space Center Houston. Possibly one of the worst tourist attractions ever (even huge fans of space generally leave disappointed), but if you're wanting to waste some time/cash I'll give you the best nasa tour you'll ever see!

Though admittedly, the new traveling exhibit we have here is pretty badass (just added yesterday). It's just south of the beltway on I-45 in the clear lake area.
Lots of small venues in the area to catch live acts...Engine Room, Numbers, Fat Cat's, Walter's On Washington, Fitzgeralds, Fuel Cyber Cafe, Java Jazz. Just google any of them for their website or just pm me. Doesn't matter what music you're into, there's always somebody to see - usually.
Like coffee? Check out the Agora coffee shop in downtown (on Westheimer, I think). Very cool place to go - kind of attracts some strange hipster burnout people though.
I'm on the opposite side of Houston (east-southeast of town), so I can't comment on the Jersey Village area...not around there much. (Deer Park, for those of you who know the area well. Next to Pasadena).
There's no zoning laws in Houston (largest city in the U.S. without them), so everything is generally scattered out, with exception to the Theatre "district" and museum "district" ...both of which are pretty cool, btw.