I understand how you feel definitely. I am a person with a poor memory and multiple Gmail accounts... So sometimes I open up my "All Inboxes" folder in the gmail app to discover that I've given the same website multiple addresses and they've sent out three emails to each :(.

With the click notifications on my phone though, I tend to live and die by them (again, poor memory). I use a lot of calendar and scheduling apps, and in that case the design of the notifications is actually really important to me