If you are planning to make a valid handwritten will in Texas, there are some important things to keep in mind. First and foremost, make sure that you have a valid legal document from your state or country of residence. This means that the document is written in accordance with the law of that jurisdiction, and it has not been revoked or amended since it was signed. Next, be sure to get help from an experienced attorney if you are drafting your will. An attorney can help you address any legal concerns that you may have, and can also provide guidance on how to best protect your personal estate. Finally, be sure to sign your will in front of a notary public or other official witness who knows about wills and legal documents. Doing so ensures that your will is valid and legally binding.