The main duties and responsibilities of a home carer in Grapevine, TX, include providing personal care (such as showering, shaving, oral hygiene, dressing, toileting), administering medication and providing medication reminders, monitoring health vitals like blood pressure and blood sugar levels, maintaining records and reporting changes, assisting with meal preparation and household tasks like meals and laundry, and offering one-on-one personalized engagement and companionship.