from the Texas Sec. of State website:
You may not:
Vote in an election in which you know that you are not eligible to vote.
Vote twice in an election.
Provide assistance to a voter who is not eligible to receive assistance.
Suggest how another person should vote by word, sign or gesture while in the polling place.
Intimidate, threaten, or coerce any person from voting or attempting to vote.
Electioneer or loiter within 100 feet of the entrance to the polling place or inside the polling place.
Buy or sell your ballot.
Deposit a ballot in the ballot box that was not given to you by an election official.
Yeehaw!!! Like every good Texan I'm going to vote three times!!! And, ala LBJ, my late friend Tom is going to vote three times. However, in keeping with the Secretary of State's rules, we will not vote just twice.