Remembering how, back in the day, I went through my contact list and found a song that best matched each person. I think apps/websites should let me choose different tones based on who generated a notification.
but bcj, you keep your phone on silent all the time so you'd never know
Oh, I'd set the default notification noise to silent and then would come up with cool sounds for close friends (and also cool sounds for people I'm not friends with but I think are cool so I'd be excited if they noticed me)