I certainly need to, but unfortunately I don't, at least not on my person. In the winter, I wear a lot of shirts without pockets, so I get out of the habit of carrying one, then when the weather warms up and i can break out the short sleeve shirts with pockets, I always forget to include one. I do however have plenty of pens at the office, and in my bag that travels to and from work with me, but after that, and on the weekends, I have to go for the pen stash when I need one.

I'd like to get into the habit of carrying one, and a good notebook, so it looks like I either need to reconsider where to carry them or reconsider my winter work wardrobe.

Yes, Fisher Space Pen.

For a while I carried an Inka on my keychain. I still have it and I like it a lot -- it uses Fisher refills. After moving it off my keychain I upgraded to a Fisher Bullet. Sadly, I lost it, but I took the opportunity to buy a titanium nitride Bullet. It looks great and doesn't show scratches like the stainless steel one did.

I have a Victorinox pen from their SwissCard in my wallet. I often forget I have it. The rest of the SwissCard has gone the way of the dinosaur.

Nope, I do not EDC a pen. If I need one there are two in my truck, four or five on my desk at home, three in my flight bag -- they're all over. I don't carry one in my pocket.

Pen and pencil (and stick eraser and marker). I also geocache so to be without a writing implement of some sort would be criminal.
I wear either my ScottEvest or jacket all the time which has convenient pockets for both. Often carry a small notebook as well.

Yes, I know I can keep notes on my smartphone or dictate a voice note but I can't draw a decent picture with it.

I cut a bic stick down to 3 inches, recapped the barrel end, poked a hole in the cap and ran a tiny cable tie through it, and added it to the key chain. Total cost: approximately nothing. Bling factor: negative 10. The rest of my kit is equally dashing, as is the rest of my life. I recently devised a backpack out of rope, cable ties and a 5 gallon plastic bucket: it provides water proof storage at the beach, a place to carry my ropes and stakes for securing the beach umbrella, and, filled with sand, provides an effective umbrella anchor on windy beach days. It garners few compliments, but DW will still sit with me, so I do not care.

You obviously need a tactical beach umbrella.....

Always need a pen it seems....

I EDC a pico pen on my keychain.

http://www.tecaccessories.com/products/product.php?II=13

i had one too, until i managed to overcome the rare earth magnet and lose it.

now i have an inka pen - can be a bit of a bother to use (can be used shortened, which may be too short for some to use, before taking it apart and reconfiguring it for regular use), but i haven't managed to lose it.