[I purchased a 1" gate valve at Elliot's in Dallas a fewweeks back. They have a great selection and I would expect you'll probably walk out of the store with two or three new projects in mind.
They have odd hours so you may want to check on that before heading over there.
Something like closing at 6 on weekdays, 5 on Saturday and Sunday they are closed entirely.
If you are heading to the next meeting let me know and I could pick one up for you in advance and swing it by the meeting....I average at least one trip there a week.]