It's perfect for traveling and can be very easy and repetitive if a simple pattern is chosen, so that I don't even bother taking a pattern with me most of the time.
When working on my socks I like the simple aluminium DPNs the most, they bend and are flexible (which is especially handy for the toe-up version I prefer, when starting with Judy's magic cast-on) and in my opinion slide much quicker and make for smoother, rhythmical knitting.
I have quite a lot of these in 2mm and 2,5mm sizes and since they are fairly cheap I am less sad when I frequently loose some here or there....
So I quickly get quite irritated by them...
I have tried the carbon DPNs in the same size and found them great - but after some use the metal tips loosened up a little (at least it got like that on my pair) and the yarn snags at the connection of the tip to the carbon body, which is no fun at all. So I got back to my old, bended, cheap aluminium version and I am happily knitting my socks again.
To keep things even simpler I don't keep notes at all, but put safety pins to mark rows or crucial points I need to remember for the second sock.
Like this I can see immediately when exactly I started the gusset increases by counting the rows on my first sock until said safety pin, or how many rows I added after the toe increase and things like that.
I also bring the cast-on tail to the RS after knitting some rounds, so that the yarn end that hangs on one side tells me where my rounds start - again without having to use any marker!
(It seems that the elimination of stitch markers makes me incredibly happy!)
What do you think of knitted socks?
And do you have a preferred method or pattern?