Good topic,
I think we all have a bunch of things we use depending on the material projects needs.
for wood if I can't us an awl
I love a wooden pencil, but the tip breaks too easy and in your belt it is one height when new and soon you can't find it because it is too short.
I have the mechanical pencil from drafting but don't find them helpful on site as you have to have a sharpener.
I found a .9mm pencil from Pentel but it was had it's own issues. The erasers fell out too easy and then you lost all the lead. Also the shape was fat were the fingers held it and that made it a pain to get in and out of tool belt leather Holder.
About 8 months back I found at Paradise Pen at the Mall of America in MN (they also have a web site
www.paradisepen.com) the Retro 51 Tornado Stealth Mechanical Pencil
It is about 5 and 1/8" long and about 7/16" diameter, it uses 1.1 mm lead that I have only broken by dropping or using the lead is extended way too far to reach some odd space.
It fits leather tool belts well also.
I knew I had winner when after I loaned it to one person on the crew for one one mark that was was holding..... and then others in the crew started asking to use/try it. Yea we still have pencils but those are only for destructive marking situation and to loan outside the crew.
It seems that 1.1mm lead really makes a difference for durability.
At $30 it is great. I have to say this is the first mechanical pencil that I have found that works on and off site wood working and something I carry for day planners, notes, lists...etc.
I love it and have bought a backup...
Cheers,
Steve