I have spent considerable time contemplating what it means to be 40.
Though my good friends at L’Oreal give me the option to not show my grey hair, I’d like to think what does show is four decades of life experience.
If you, too, have earned some grey hair and/or life experience, would you like to join a blogging project that’s in the works?
I’m writing a post tentatively headlined “40 things I’ve learned at 40,” and two excellent writers — Margaret Yang and Amanda Hirsch — have done their own lists, as well. A few others are in the works.
To join in on this weekly series, all you need to do is:

• Write a list of things you’ve learned in life — one item for every year of your age. They need not be profound. You can include your best pointers for buying discounted airline tickets, a never-fail method for removing grass stains or your favorite PowerPoint trick. Whatever accumulated wisdom you carry around in your head is fair game.
• Send me your list, along with a recent photo of yourself and a link your website or blog, if you have one.

So far this is an all-female exercise, although my hubby is making noises about joining and I’d love to make it a more co-ed experience.
The series is tentatively slated to start next week and it’ll run until I’m out of contributions. If you want to participate, email me or volunteer in the comments below and I’ll get you on the calendar.
You don’t need to be a writer to join in. Think of this in the same vein as the Facebook “25 random things” notes that everyone was doing a few years back.
You in?