<<Disclaimer: Verify this information before applying it to your situation.>>
 
In addition to the suggestion to allow the bread to cool first before
sealing (which is a great suggestion) we have also found that storing the
bread in the freezer prevents drying out, wheeras the refrigerator tends
to increase drying out.  Heating in the microwave and/or toasting brings
the bread to a delicious moist (and slightly toasted if you toast it)
state. good luck!
Kristine