So, I realized that I'm still lugging around the same field repair kit that I was using when I was a kid in the Boy Scouts. The main component was duct tape, because I figured I could use it on any of the fabrics I was carrying. Now, however, I'm using a LOT of silnylon gear (pack, poncho/tarp, tent, etc.), and I'm told that duct tape doesn't work too well on silnylon. Plus, I'm sure I could get rid of most of my old repair kit as stuff I don't need.

So what makes it into your repair kit? Is something around 3 oz. a reasonable expectation for a UL repair kit?