I have been using the single use plastic grocery bags for storing my homemade bread with some success.
Only it seems to be getting harder and harder to actually get a bag that doesn't seem to have a hole or two in the bottom by the time I get it home.
Have also used a Rubbermaid type container that holds the entire loaf. Put the lid in the dishwasher and it warped...grrrr
For me, plastic bags would be the best. I like that it takes up less space as the loaf gets smaller.
It usually takes us a week or more to eat an entire loaf unless we have something yummy like in-season tomatoes for toasted sammies.
What do you use?