Edc led
The older I get the more frequent it is I carry a LED light and reading glasses
I have a 1XAAA 4Sevens Stainless ReVo on my key chain 82 Lumens OTF, out the front rating, and three light levels.
I frequently carry a penlight style 4Sevens Preon II 160 OTF 2XAAA. It's my favorite since you can carry it like a pen, I also have it on a light lanyard and you will frequently see my watering the dog with it around my neck.
My major on the belt number is a 4Sevens Maelstrom G5 2X123A and 350 Lumenst OTF. Its my boating and camping light. It will run in moonlight mode
.2 lumens for 7.5 days.
I put a Fenix L1T v 2.0 in my wife's car. It's a 1XAA at 80 lumens. I have a EagleTac 2XAA in my truck console.
I also have a 4Sevens Quark Mini CR2 180 Lumens OTF, show someone this light at night and they are amazed at the size vs output of this little sucker.
Maelstrom G5
ReVo Stainless
Preon II and Quark Mini
642 and a Titanium LTD Quark from 4Sevens
Here is a heavy carry early Fenix T1, my wife uses it to walk the dog at night.
This makes a nice EDC, 2XAA and only $31. 4Sevens QMini
This one is hanging on my office door on a lanyard.
4Sevens supplies some nice accessory items with most of their lights and they come with a 10 year warranty. They are out of Atlanta
www.4sevens.com
If you use a lot of batteries, particularly AA and AAA there is a nice rechargable setup from Sanyo.
Eneloop Ni-MH. You can find kits and seperates on Amazon. They have a great shelf life and don't have to be drained. You can even put them in a cylinder to create C and D Format batteries.
http://www.eneloop.info/home/faq.html