Drawing the same object. Learn to draw by drawing the same thing every day for 100 days in a row.

New connections. Introduce yourself to a new person each day. Become very good at remembering names and making new connections.

Sunrise/sunset. Witness sunrise and sunset every day. Plan your schedule around this as your top priority.

Alter ago. Develop a new persona and spend one hour per day as this person. Different name, wardrobe, styling, background story, hobbies.

Interviews. Learn the art of interviewing. Create a repository of these interviews. Experiment with different formats and levels of planning. Interview a wide range of people. In person and remote.

Self portraits. Be intentional with styling, props, setting. More than just a selfie.

Art. Make art every day. Document it somehow. Create a publication or video to present all 100 works.

Freestyle rap. Make at least 30 minutes each day to practice rapping over beat tracks.

Racquetball! Or squash. An indoor racquet sport that you can film every day to note the progression in ability.