I have a ringtone for my contact list and use the default one for everything else.
It is a pain to set the ringtone for every number on my contact list, but sometimes I’m somewhere where I have to wait and have time to kill and do it then.
Now I can tell by the ringtone if it’s something I want to answer or ignore.
That is a great idea. Yes, lot of work to set it up if you have like 50-60 or more contacts, but the ringtone tells you if you should run to the phone.