That said, some teams at my company are experimenting with having a week-long rotation for "bread box" issues. Those include tending issues/PRs in open source repos, handling bugs as they come in, etc. That frees up the rest of the rest of the team to work on core feature work.
I like to keep a running list of smaller, non-urgent tasks that would otherwise get neglected. When I have a long-running script or need to take a break from another project, I can refer to the list.