I went 2 or 3 different years; haven't been since 03; had eye issues and it was NOT fun; eyes wouldn't focus at the time. 5 hour drive for me and as was said before driving in Houston is NOT fun - at all. No consideration from others who don't seem to realize not everyone is from there and know how to get to where they are going, so very rude. I have heard the best deals are on Sunday though, if you are there for that day. It is overwhelming with all to see. Have fun.
Also when I was there they wouldn't allow those pull along carts to put your things in; guess people were banging into others with them so they banned them; so you either have to take your things out to the car periodically OR check them - for a fee.