Sloanus Urinalia!

Nothing conveys the feeling of being able to perform actual magic quite like the innovations of the automated restroom. Look! I summon water, wind, paper towels, and soap with my hands! Toilets flush themselves as I pass!

Actually, the automated soap dispensers are a little disgusting, and should be heated to 98.6 degrees to make them fully disgusting. Still the ability to summon paper towels by pointing is a great trick, and you can improve the experience by using Rowlingesque magic words ("Aqueos!" "Accio Paper Towel!" "Accio Jizz Spurt of Soap!") while being hygenic.

Er, assuming you're alone. Probably not a good idea to perform magic in crowded airport and/or ballpark restrooms.