After retiring, Terry Cummins didn't run his first marathon until age 63, didn't technically climb his first mountain until his 64th birthday, publish his first of over 525 articles at age 66 and didn't publish his first of four books at age 69 with a fifth on the way. Better late than never works for him. Although past 77, there are many more things he must complete. Read how Terry thrives on lighting one fuse after another. It can also happen to you