I once met a guy who bought himself a gym membership as his birthday present to himself.
His 85th birthday present. He was the single most inspirational trainer I've ever met. Yes - he wore bike shorts to the gym and they flapped loosely against his legs, but he was always there when I was there, always training hard, always had a smile on his face, was open to everything and keen to learn. He would be 97 years old now if he's still alive. Absolute inspiration.