Changing out builder grade vent covers with decorative vent covers is one of the easiest ways to add character to a room while also making your home look more upscale.
how to diy an air return vent with an aluminum radiator cover from a home improvement store
If you have central heat and air conditioning, especially if you have registers on the floor, it is DEAD SIMPLE to replace the floor vent covers with something that has more personality. As in, no tools required for floor vents.
Decorative Vent Covers and Baseboard Heater Covers
Use a door mat to cover the air vent.would love to cover the ugly air vent in our house this way
10 Amazing Decorative Floor Vent Covers to Keep Your House Stylish
All the darn cold air returns in my house