I would love to give credit where it's due, but I'm afraid I can't actually remember where I read this. Sorry, dear reader, and even more sorry to the author.
Everyone wants to know how to be happy, and there is no shortage of books and websites promising you the secret, from meditation, relaxation, sleep, diet, religion, friendship, exercise, volunteering, finding your life's purpose and any number of other quite difficult and time consuming commitments.
So this piece of advice stood out: of all the things you already do, work out which makes you happiest, and do more of it.
It didn't take me long to realise that I am happiest when I'm boating. I already put the advice into practice a bit last year, boating on into December - and now I'm itching to start 2017's; already envious of the Herbies and the others who are already out on the water.