Bah humbug! Now I feel like a greybeard - all this arduino stuff is spoiling you. Some of the microcontrollers I used to use only gave you 4 bits to your byte, try telling that to youngsters nowadays!
I had one of the most entertaining hours of my university career in a lecture entitles 101 uses for a 555 timer, it should have been subtitled how to use and totally abuse a 555 timer.