Here you are, doesn't cost much and probably doesn't weigh much and you could weigh your pack every day to see how you are doing:
--- In email@example.com, John Ladd <johnladd@...> wrote:
> On Sun, Aug 25, 2013 at 8:12 AM, kennethjessett@... <kenjessett
> @...> wrote:
> > But one wonders what you are weighing at the end, if it is your self, you
> > will need a sack to climb into
> Maybe I finally fund a use of that the 660 lb paracord people tell me I
> should have. It would allow me to make a sling and step into it.
> Actually, I'd like to know my base weight and at the end of the trip, I'll
> be down to that. I've never bothered to really figure it out with any
> precision, though I've often gotten the gross weight at the start of a
> trip. I'm guessing about 30-35.
> John Curran Ladd
> 1616 Castro Street
> San Francisco, CA 94114-3707