Plank Challenge

Start Date: Jan 23

Done:
Day 1: 20 seconds
Day 2: 20 seconds (25)
Day 3: 20 seconds (30)
Day 4: 25 seconds (30)
Day 5: 30 seconds (45)

Next:
Day 6: 30 seconds
Day 7: 35 seconds
Day 8: 40 seconds
Day 9: 40 seconds
Day 10: 45 seconds
Day 11: 50 seconds
Day 12: 50 seconds
Day 13: 55 seconds
Day 14: 60 seconds
Day 15: 60 seconds
Day 16: 65 seconds
Day 17: 70 seconds
Day 18: 70 seconds
Day 19: 75 seconds
Day 20: 80 seconds
Day 21: 80 seconds
Day 22: 85 seconds
Day 23: 90 seconds
Day 24: 90 seconds
Day 25: 100 seconds
Day 26: 100 seconds
Day 27: 105 seconds
Day 28: 110 seconds
Day 29: 115 seconds
Day 30: 120 seconds