Certainly the most practical alternative, chat to your neighbours to see if you can borrow their bathroom while yours is out of action.
If you have local family or friends, ask if you can pop by daily for a shower and a hug.
Get to work a little early or stop by the gym each day.
This seems like an obvious solution, but it’s easy to forget when you’re focused on a big project.
Even with the most solid of plans, bathroom projects can take a while, and there will be times your bathroom is out of action. Be prepared by planning an alternative.