The Super Hundred Rep Circuit

I guess I have a thing about the number 100 haha!  It may have started years ago when I started doing Pilates (and the exercise called "the hundred").  Someday I'll ask a shrink about my mild obsession. For this circuit, you can pick any 4 exercises you like (make sure the are not too similar or over using the same muscles unless you have a specific reason to).  Perform each exercise for 25 reps taking minimal breaks in between unless you are loosing good form, in which case you should listen to your body and keep your technique top of mind. When I do it, I complete the circuit 4 times so I get 100 reps of each exercise.  See how many times you can complete your circuit with the ultimate goal being 4 times!  Let me know how you...