I have flown 10 instrument approaches in the last 5 days and they haven't use any of ILS,NDB,GPS,VOR,DME or any other approach aid.
How did I do it you may ask.
I looked out the window could see the field, asked for a visual approach and hoofed it in.
Its your flight rules which determines if an approach is an IAP or not. And there is nothing the regs preventing you using an ILS if its there even when VFR. But if you do use it when you are VFR don't bitch and complain if ATC take it out of service and don't tell you or it does weird things.
And I have never logged any approaches, what ever there flavour. Or is this a purely FAA thing?