Way 5: Actual USB
Both Surface variations allow you to plug in some (not all, but at least some) USB devices. That means you can finally put files on a thumb drive and move them onto your tablet. You can also use an external keyboard and mouse, so you no longer have to smush your fingers all over the screen to get anything done.
You'd think Apple would have figured this out years ago, but instead, it effectively ceded its entire file system to Dropbox.
So there you go. I can't tell you to go out and buy a Surface (especially the Surface RT), but there are some good ideas in the design that the iPad is sorely lacking.
My hope is that Apple will innovate and move its launcher interface out of the 20th century, and that Microsoft will do a better job of both meeting tablet owners' needs along with the needs of the rest of its traditional Windows users.
Yeah. Well. I know.