Neither of us works a 9-5 job. Next Monday at 3PM, there might be nobody home, or both of us home, or I'm home and want the A/C on, or I'm home but the weather'

Neither of us works a 9-5 job. Next Monday at 3PM, there might be nobody home, or both of us home, or I'm home and want the A/C on, or I'm home but the weather's nice so I'm working in the sunroom and don't need the A/C. That evening, we may spend a few hours out with friends or family, and don't need the A/C blasting at home for no reason. Or we may be home and need it after all. At midnight, we may both be sleeping, and she'll want the temperature around 68. Or she might be working an overnight shift, and when I'm sleeping alone I prefer it warmer. There's nothing that can be programmed into the thermostat in advance. Remote control offers the best convenience and best economics.