If you or someone you know pours your own concrete forms, you can coat the inside of wooden forms with the oil to make it easier to separate from the concrete.
As for disposal, that's one of the main reasons I stopped doing my own oil changes. I'll pay Flagship to avoid the headaches of trying to do the disposal.
When you figure the time, mess, having to buy oil, filters, pan, filter wrench, disposable rags, ramps if needed, disposal boxes or whatever other disposal containers if required, etc, paying to have it done for you is worth it.