Using a clothesline helps you save money on the electricity required to operate your dryer.
Therefore, unless you're hanging everything on the clothesline, you'll save on the energy used by the dryer as well.
Laundry drying on an outdoor clothesline is a very common sight (except, apparently, on Sundays).
Never hang satin bed linens on an outdoor clothesline to dry.
Another tried and tested idea is to string a clothesline across the room.