Reschedule your dentist appointment
From Create Your Own Story
You call up the dentist's office and put off getting your teeth drilled in again because you're too much of a lazy shit to have proper dental hygiene. You get dressed and go to work.
Nothing particularly interesting happens that day. Or the next day. Or ever. You just keep putting off every single thing that could ever be interesting, just like you put off your appointment.
You never do go to your appointment. You work your same middle-class job for the rest of your life. Shortly after your retirement, your preserved girlfriend breaks up with you somehow despite being a corpse. You die alone and without any real accomplishments, friends, family, or really anything that would make remembering you worthwhile. Good job.