With a Purpose
All 50 by a specific age, such as All 50 by age 50, All 50 by 30
Visit all 50 state capitols
Spend the night in each state
Eat the local cuisine or a restaurant in each state
Drink a craft beer or glass of wine in each state
Visit a National Park or State Park in every state
Go to a Presidential Site in each state (library, birthplace, childhood home)
Visit a Religious Site in every state
Stop at a Movie or TV location in all 50
Have an animal experience in each state or make an unusual animal stop
See interesting architecture in every state