Use an extra adapter for home or work. The Apple 45W MagSafe 2 Power Adapter is made specifically for your MacBook Air. It's held in place magnetically, so if someone should trip over it, the cord disconnects harmlessly and your notebook stays put safely.
Apple Cables and Adapters
Apple 45W MagSafe 2 Power Adapter For MacBook Air
Specifications of Apple 45W MagSafe 2 Power Adapter For MacBook Air