washing in cold water

Washing clothes and dishes in cold water saves lots of money on heating the water.  Its also better for the environment.  I do use hot water when someone is sick with something worse than a cold.  And for fabrics which can't be washed in hot water, I am now going to be using the vinegar and hydrogen peroxide method I blogged about earlier to kill germs before washing with other items.
I try to at least let jeans air dry because they last longer that way.  I confess to using the dryer for most things because I convince myself "if I hang up only the things that won't wrinkle when air drying, I won't have a full load for the dryer."  I am terrible at ironing and I figure I wouldn't be saving much money and certainly losing time if I ironed clothing instead of letting the dryer take the wrinkles out.