$0.00 [Eight-Second Doggie Door]

The summer's heat has faded, which means we can keep the windows and back door open.  Lulu has converted the broken screen door into her own personal doggie door.  She just started letting herself in and out.  $0.00 for the ultimate in doggie relief convenience: not only do we not need to walk her now, we don't even need to get up and open the door.

What about the other pets?  Betelgeuse is too scared of the wooden door frame to walk through the screen.  Part of her charm, I guess.  Lola, however, will use the makeshift doggie door when no one is looking.  We'll catch her peering in at us from the outside of the back window, which is always good for a laugh.