For larger baggies we use ZipLoc freezer bags because they're tough. For smaller baggies we use craft bags because they're cheap. The other day in a Wally World I found another type of tiny baggie, a pill bag sold in the pharmacy area. It looks to be about 2" x 3" but the closure is along the long side rather than the short side as on craft bags. It also has a place on it to write on it. In a package of 50 it comes out to less than three cents per baggie.

It looks to be about 2" x 3" but the closure is along the long side rather than the short side as on craft bags. It also has a place on it to write on it. In a package of 50 it comes out to less than three cents per baggie.

That's what I use as spare logbooks when doing maintenance on boxes. I fold strips of paper. They stay flat and take up no room in my backpack, and they fit every size container that I've encountered so far, including pill bottles and film canisters.

A while back I ended up with a slew of these pill baggies. Being the letterboxer at the time in the house they were given to me with the thought that I might be able to use them. One of the projects I did with them was make some hitchhikers like this one.

I too used them for miniature logbooks as well.