Cross device functionality

dunno if that was the best choice for a title, but that's besides the point of this post.

Wanted to run this question by you guys here at the tribe,

What cool or useful things can you do with your windows devices?

owning a surface pro 2, (most likely going to be upgraded to the sp3) I want to know what cool things can done between a smartphone and a windows tablet/computer. Doesn't necessarily have to be a windows phone, although im assuming there are benefits towards having both windows devices, in terms of performing actions between the two.

How do you sync your phone? How do you unload the pictures on your phone to your tablet/PC? Send links between the two?

These are the kinds of things im looking for and cant wait to read what you all have to say!