Three Easy Tips for Asthma Relief for Kids

On the new "Fight" asthma campaign public service announcement from the Environmental Protection Agency, there are 3 specific and surprisingly easy ideas to provide asthma relief for children.  (The PSA can be viewed here http://www.epapsa.com/media/epa-childasthma.mpg.)
For asthma relief:

Put stuffed animals in a plastic bag and freeze them to kill dust mites
Wipe off bath toys to [...]