Any ideas for exercises that I can do in the morning in the bathroom before taking a shower?

John X.
Yes, push-ups, sit ups – squats, plank. And if you have a bathtub you can use it to lean for push ups on the ledge to make it easier or for biseps like a chair.

Mattie U.
I’d say don’t do anything to intense, the best thing is probably to stretch, it relaxes you and also gets your body ready to move throughout the day

Edu No Z.
You can do pliés (from ballet) in front of the mirror. Raising on your toes and then going down bending your knees. It strengthens your calves and ankles, and helps with posture and balance.