On laundry day it pays to be lazy. Doing several loads of laundry and then drying them batch after batch saves energy. The residual heat from the first batch will help dry the second one faster. Also, pull heavier items out of the dryer while they're still damp to air-dry, like towels, jeans and sweaters. Just hang them over chairs or a banister. Your favorite clothes won't shrink and you'll save electricity, too.