Shop (yes!) locally
You can still do a lot of everyday tasks and shopping while stores are closed. And get something yummy when you're bored with your own cooking. Here's a list of Bangor businesses that are doing curbside pickup and/or delivery:
https://downtownbangor.com/curbside-take-out-and-delivery-options/
Go to a concert
Numerous orchestras and other music organizations in Europe and the U.S. are offering streaming concerts free. We've posted some of these before, but list is really comprehensive. It's updated frequently. Note that many of the concerts are streamed live, so you'll want to tune in at the right time.
https://www.musicalamerica.com/news/newsstory.cfm?storyid=44766&categoryid=1&archived=0
Visit a museum
We've talked about this before, but more and more museums are making their collections available online. Here's another list:
https://toomeyco.com/12-virtual-museum-exhibits/