Nothing in my skydrive folder. I moved everything out after Windows 8.1 because it had a number of show stopping issues. Skydrive in 8.1 introduced this idea of online-only files by default. What this means is that normally things aren't downloaded until you access them. In practice, it should be essentially transparent to the end user, but it isn't.
Originally my SkyDrive was setup with portable programs and scripts which I would run whenever I needed. After 8.1, this went out the window. It wasn't able to download the required files when I would run an executable -- for example, it would fail to download library dependencies or configuration files. Moreover, it would fail to download anything scripts accessed also. So, it became essentially useless. I planned to work around the issue by telling it to make everything available offline, but that didn't actually work. As far as I could surmise, it choked somehow and would just lie to me about what was actually available offline (i.e. tell me everything was). The only reliable way I got it to download everything was to initiate a copy of files OUT of the the skydrive directory. It'd happily download everything on the fly then.
The final straw that made it entirely useless was simply the fact that I could no longer tell what had synced/how long was left for syncing/etc because presumably MS decided that information was too difficult for consumers to understand and removed it in 8.1. Problem is, that information is critically important if you are syncing more than just a picture here and there. I can't particularly rely on software that is unable to give tell me the status of my files. At that point, I might as well use something that can.
The point is that I'd be wary of skydrive since 8.1.
EDIT: I forgot to mention that it also wouldn't reliably delete everything after I moved my files out of it. It took me 2 or so days of repeatedly deleting files for them to stop coming back. It was as if I would delete them on one device and the other device would resync them stupidly.