My sister-in-law stayed with me for two months in 2007. We each moved to different states soon after that. I still get mailers at least twice a year addressed to her at my house offering to buy the time share neither of us ever owned.

My state (republican trifecta) requires a signature at the polling place that matches your voter registration card or photo ID card. I assume they can audit these if there’s a question.

Most people think specifically of photo ID when they see this. In Oklahoma (republican trifecta), you have options, including your voter registration card. I’m assuming there are variations in other states, as well. https://oklahoma.gov/elections/voters/proof-of-identity.html