I keep thinking that a VPN might be what I need, but then when I look at VPN documentation etc. I wonder whether it is what I need.
So, if I set up an OpenVPN server on my home desktop machine (which stays turned on all the time) and set up access for me as a client from my laptop, what does it mean that I could do that I can't do already? Or, maybe more to the point, what does it make it easier to do?
(Note that my home desktop is visible at a fixed IP address from the outside world and I can open up any additional ports through the firewall if necessary.)