One of the most convenient features of Yosemite and iOS is Continuity which supports Handoff. The whole idea behind it is that you can be using an application on your desktop and then pickup where you left off on your iOS device.
For example, say I was looking up directions in Maps on my desktop and then needed to head to my car into order to reach my destination. Handoff allows me to open up Maps on my phone and have it display exactly what I was viewing on my desktop.
Convenient, sure, but this post isn’t meant to be a commercial for all things OS X / iOS. Instead, it’s meant to highlight an application that helps cover a shortcoming of the seamless integration between the devices.
Namely, Pastebot.