Search for a Travel Clinic and get a consultation. Does your medical insurance in your home country cover you in Mexico? Bring your medical records and eyeglass prescriptions with you. Call your bank and credit card companies and let them know you're going to be traveling to Mexico and any other countries that you may visit. Ask if they have foreign transaction fees. Check the expiration dates on all your identification, passport, bank cards and credit cards and make sure nothing's going to expire while you are traveling. Put your mail on hold or have it forwarded to a friend or relative. Buy pesos from your bank before you leave. And then use your debit card at any ATM in Mexico. Learn the exchange rate. Learn to count the numbers in Spanish. Learn the names of food in Spanish. Make a file folder with photocopies of all your identification, passport, credit cards, bank cards, medical information, emergency contact information, birth certificate etc. Also, use your phone and take photos of all of these things. Contact your cell phone provider and make sure you have international calling on your phone. Or, make sure you have an unlocked phone and use the cell phone services available in Mexico for international calling. Have a backup phone with the app, Find My Device, on both phones. Download the app, Google Translate and learn how to use it. Create a colored label with your name and emergency contact information. Put this on your wallet or purse and the back of your phone. If one of these items is lost or stolen you will have a much better chance of getting it back. If time permits, when using any form of public transportation take a photo of the vehicle and the vehicle number. Keep napkins or a small amount of toilet paper in your pocket or purse. When you are going out for the night, make sure your phone is charged. Take only your identification, one credit card or debit card, and enough pesos for the night. Make sure you have small change. Don't wear a lot of flashy jewelry. Never let your phone or purse out of your sight. Be aware of the people who are around you and the people you are with. Be aware of all the exits. Be polite to the panhandlers and sellers. If you are not interested, Smile and say, no gracias. Know where the closest consulate is and contact information for the Consulate or Embassy of your home country. Learn where the closest tourist information office is located. Where is the closest immigration office? Buy Mexican car insurance at an insurance company at the border. Get a good alarm system installed on your car. Get a hard copy map of Mexico put it on the wall and start studying it. The electricity here is the same so all your small appliances and plug-in devices will work here. If you're bringing pets your going to have a lot of limitations. Go to your public library. Look at the books wriiten about mexico. If you plan on working in Mexico for a Mexican business or company, be advised, the current minimum wage in Mexico is $172.87 pesos PER DAY. Remember, you are a quest in a foreign country.