It really depends what you need the VPN for I suppose.
If you're looking to create a LAN-like network where you can hit the home/work office remotely, Hamachi is a pretty easy solution to install and configure. Pretty sure it's still free... not sure, but it was for a certain number of workstations the last time I checked. I also use GoToAssist's ""Unattended Support"" feature to jump onto my three primary workstations as well (home, office, laptop). Both create a nice redundancy/digital safety blanket.
If you're looking to privatize what you're doing electronically, there's a myriad of those available. Most of which have some sort of limitation to how much you can filter through the VPN on the free versions. Currently testing TunnelBear today actually (fun coincidence) and I've already maxed out my 500mb free for the month in less than 5 hours. Not sure if I should be worried or impressed by that....