What is the one item that backpackers can't get enough of? Stuff sacks! That's right, stuff sacks are those wonderful bags that keep our bags organized. Although putting things inside a bag, to put inside another bag, to possibly but inside another bag, may seem to be the actions of a lunatic (some city-dwellers would consider people that willingly forgo the comfort of their home as crazy), it is actually a very useful tactic to keeping your pack organized.
Although there are a myriad of different types of stuff sacks ranging from the high-end ultra-light ones (e.g. this one, or this one) that weigh less than an ounce, to the regular, run of the mill ones (e.g. this one) that weigh a couple of ounces. The problem with these is that, the high-end ones are expensive and the cheap ones are "heavy." So, what's the solution that trades time for money and sprinkles in a dash of fun? DIY, of course. The instructions below are for making silicon-nylon (silnylon) stuff sacks that are quite light and cheap. The 12L bag from the instructions below (8" wide by 16" deep) only weighs 5/8th of an ounce and cost me about $3 in materials (I bought about $12 worth of material, and with that I should be able to make at least 4 sacks.)