MR PORTER is rolling out an iPad app to help guys discover everything there is to know about the tuxedo. "The Tux" app, as it's called, includes tips on how to choose a tux, tie a bow tie, and pick the right accessories. If you like what you see, all the items shown can be purchased. 

Once you've got the look down, the app also breaks down how to host a party and how to mix a cocktail, as well as features a list of the best bars around.

The app is free, so head over to iTunes now to download.