It's the same as with firearms. You don't have enough flashlights and they aren't bright enough. I carry 3 flashlights and 4 spare batteries there are way more all over the house. The Fenix E01 with a lithium battery in it is a great cheap flashlight to stash in every cubby you can find.
www.candlepowerforums.com
http://www.candlepowerforums.com/vb/...d.php?t=205841
http://www.candlepowerforums.com/vb/...d.php?t=177171
'Nuff said