While I am certainly well groomed in relatively normal circumstances, when the going gets tough, none of this stuff is worth carrying around. I would far rather have additional food or water.
In terms of grooming, nothing beats a shower or a bath, which only requires soap.
The idea is to use the BOBWABUK once you have reached that Bug out location base camp (hopefully where there is some water and food resources such as wild game, hotel restaurant etc). The camp shower for example is a versatile piece of kit.
The Ortlieb bag can double up a dry bag, a camp shower and a component for a camp water filter and a 10 litre water carrier.
The BOBWABUK can double up as a field or urban kit (hotel bug out). Keeping bodily clean will also keep clothing and other field kit such as sleeping bags cleaner helping with longer term performance for shelter as well.
Not only is there a psychological aspect to being able to maintian routine hygiene practices I know that I look a lot less threatening when I'm clean shaven.
This is an interesting take, does keeping neat and tidy get you to the front of the queue more quickly. i.e. does it blag you the last hotel room where all the other scruffs, waifs and strays don't?
Is it worth the addition 1-2 lbs of additional carry weight for BOB kit?
Consider using shaving mug soap and brush.There is no can to puncture,discharge or explode.In a pinch it can be used for bathing.....
I prefer the King of Shaves Alpha Oil (much less bulky) and it is very lightweight and gives a very close and effective shave when used with the Gillette Mach3 Power Razor (the alkaline AAA cell has been replaced with a Lithium Energiser AAA). The small bottle of Alpha oil will give around 20-30 shaves.
http://www.kingofshavesdirect.com/category.asp?cat_id=UK_130&nwbr=UK