Yes, my plan is:
  • 1 push-up on day 201
  • 2 push-ups on day 202
  • ...
  • 99 push-ups on day 299
  • 100 push-ups on day 300
I can do more than a handful per day already, but this is just to establish the routine.
I will not commit to adding sit-ups just yet, but if I hit my target then I'll add a new exercise on day 301!