Mesh

I love Microsoft's Mesh service.  Seriously.

I keep my curriculum stuff there and the projects I am working on . 

It's at http://www.mesh.com and although the website is blocked by the district, the client still downloads and works.

Basically it syncs your files between computers, allows you to share those files with others and gives you remote access to the computers you have it on.

It's cool, it works, what more do you want?