Recently I've started looking at options for carrying a small ballpoint or gel/roller pen instead of my small pencil. I prefer the feel of writing with a pen than with a pencil and with the advancements in water-proof and fade-proof inks I am much more comfortable using an ink pe
These are stuff sacks made out of sewn together Tyvek shipping envelopes. This is a great idea for sacks because Tyvek is so strong and practically waterproof. Instead of doing all the sewing you can usually pick up large pieces of TYVEK from construction site dumpsters and have fewer seams to sew.