Considering my obsession with a good bug-out bag I try and think of everything I “could” need when SHTF. I recently ran in to these awesome compressed towels, or as I like to call them Compressed Coin Toilet Paper. In reality they are much more than just TP. You can get 200 pieces for just $23 and they come in convenient 50-pack bags which have individually wrapped packs of TP coins.
This particular brand is called the EZ Towel and starts off about the diameter of a nickel (but much thicker) and expands with just a few drops of water. Sure, it makes great toilet paper but it also works great for baby bags, fishing trips, the glovebox, camp trips, etc… Each EZ Towel does the work of over 10 paper napkins and they are biodegradable. There are quite a few other brands here but I prefer the EZ Towel packaging.