Give your pets a bath using pet-approved flea shampoo. However, make sure not to use flea drops (like Frontline or Advantage) for at least two days afterward. They bond to the oil layer of the skin and won't work if it's not there.
Vacuuming sucks up flea eggs and flea feces that flea larvae use for food. Give special focus your pet's bedding and make sure to dispose of the vacuumed debris immediately (outside the house).
Place a tin of water near a night light. While not as effective as other means, when it gets dark the fleas will go toward the light and fall in the water, often drowning.