You might be familiar with LogMeIn, a service which allows you to remotely access your desktop computer from almost anywhere. As of today, LogMeIn is no longer allowing people to use their remote computer access service for free. You will be asked to switch to their paid service. If you have been using the free version of Cubby and Join.me, then you will still be able to use those for free.
If you are still looking for a free service, then you will need to go somewhere else.
I have been a long-time user of LogMeIn for a while. It was my go-to solution to access my computers remotely, but now I will be searching for an alternative. I will report in as soon as I find something.
If you have found a free alternative, then let me know in the comments.