Over my first in my 30’s I’ve picked up a few bit of knowledge. Here are some healthy examples

To no longer date girls from Myspace.com (yay!)
I’ve become a CSS expert (design lingo for Cascading Style Sheet site construction)
That owning a condo is not nearly as cool as it sounds. Especially these days.
That no matter how many locks you’ve got on your door some dumb shit will take a crowbar and bust it down.
Not to drink any kind of water in central American countries…even ice….ever.
How to ask for a rum and coke in said countries without ice. Something like “una rum con cola sen yello porfavor ( I know I spelled it wrong).
That tequilla sunrises are much better at curing hangovers than bloody mary’s (and a lot easier on your stomach)
That PHP and Javscript sites are much more powerful tools than just html alone for building sites and far more expandable.
To calm down and take a breath before I speak out of anger
Pat’s surf report is often way too optimistic
Dan’s surf report is often a bit too pesimistic
No one ever gets the surf report exactly right and sometimes it’s just best to get down to the beach and look for yourself
Tuf-lite (surftec) surfboards are so much more durable than conventional fiberglass and a much better investment as far as surfing goes.
That no matter how bad life gets sometimes, there is always someone out there who’s way worse off than you are and that time does in fact heal the soul.
There’s no such thing as a sad banjo song

I’m still working on not taking life too seriously and lightening up a bit.