I work / use a total of 5 different computers however, by using DropBox, I have one desktop on multiple computers. This saves me a ton of time trying to make sure I keep my files stored in the same place. By moving your desktop under your DropBox folder, you can easily keep them synced.
You can also create toolbars using the same approach. Especially if you have toolbars linked to folders that are under your DropBox account.
Video demonstrating one desktop on multiple computers
I wrote a small program with AHK that allows you to share the clipboard with another computer (regardless of where it is). Sometimes I’m using my laptop and copy & then want to paste on my desktop while other times I’m collaborating with my friend in Denmark. Either case is simple for me. All I have to do on one computer is copy it to the clipboard. The other computer can simply paste and the text (or file if you’re in Windows Explorer) will be pasted!
The only requirement is to have a folder that is shared between them. (Use services like Dropbox or Google Drive or a network drive if you are at work. It has been tested on Win XP, Win 7, Win 8 and Windows 10.