I just did.
Until the end of September, Microsoft is giving 15GB additional space for image and video storage.
The only thing you have to do is to download OneDrive and enable camera upload to it. This will give your an additional 15GB storage space to be used for your pictures and videos.
Evil tongues speak that the addition is only to be used for images and videos, but at least the screenshot from my profile does not say that. So I hope Microsoft marketing had enough brains not to piss out its customers ☺
Don’t you just love the cloud storage competition? Microsoft is winning big so far (prices vs. offering, I mean)!