Fortunately, we haven't had any Bear guests in a couple of years.. Hopefully, they won't become a problem again..
Actually, I really didn't feel they were a problem to begin with.. Michigan bears are pretty timid, but do seem curious and like to "people" watch through windows and screens.
We have clear tarp covers for the outside of the porch in the winter. It not only helps keep that end of the house warmer, but it's also protecting our new screened in doors and the furniture on the porch.. I can't wait for warm weather so we can open up the porch again and enjoy it..