If you have an iPhone or some other type of smartphone, you can install a VNC application like Teamviewer to remotely access your computer while you're not at home.
I think he means to try to incorporate these 3d graphics in signatures and other designs.
I agree. They're very good. I could see you designing logos or something along those lines.
I like where you're going with these, but there are some problems.
In all of them, it seems as though the render isn't blended with the background images/textures. And also, maybe do something more with the text.
Other than that, good job.