You need space for your own uses. could it be something like <myaccount>.users.sonic.net ? would be very useful (and free!) and so much easier to remember than 75.101.50.xx and for those without static dns, setting a short TTL ensure it's valid.
Personal web hosting is to host files on your servers, what i am trying to do is access my home machine from away (my files on whs, the control panel of the solar array, the security cameras, etc). and the free domain is free only the first year. I have a domain at godaddy (they had a discount at the time i signed up) and i could not find how to set up a subdomain on their interface (home.mydomain.com) to point to my sonic IP. My hosting has Cpanel and i could set a redirection for home.mydomain.com to sonic ip but it's an http redirection not a real dns entry.