Most geocachers know what CITO means: Cache In, Trash Out. It’s the geocaching philosophy of trying to carry out some trash with you to help clean up the sites you visit.
This weekend near a cache where I encountered some trash I was unable to CITO because I didn’t have a means for safe disposal. The material in question was broken glass.

For CITO, it’s not a bad idea to carry a few shopping bags with twist ties so you are prepared to CITO when the time comes. But you need a bit extra to prepare for broken glass.
I don’t recommend that you handle broken glass, because it is dangerous. But if you are determined to do so, here is what you ought to keep in your car to be prepared for glass cleanup:
- leather gardening gloves
- a cardboard box (like a corrugated mailer) deep enough to hold a beer bottle
- duct or shipping tape
- a small whisk broom or camp shovel
- Some sort of marker, like a Sharpie or Marks-a-lot
The gloves and duct tape and camp shovel are generally useful to have in a trunk readiness kit. The cardboard box is easier to store if it’s the flat kind that has yet to be folded out into full box mode.
The procedure (proceed at your own risk):
Fold the box into a box, if necessary. Wear the gloves for hand protection. If the glass is on a hard surface, use the broom to sweep any glass pieces into the box. If it is on dirt, use the camp shovel to scoop up the glass (you may need to take some of the surrounding dirt as well) and you’ll need to be thorough in removing any small shards.
Once all the glass is inside the box, close all flaps and seal them with your tape. Mark the box with the words: “BROKEN GLASS.” Instead of carrying the marker, you can mark the box in advance. But marking it at the time of use makes it more versatile.
The glass is will now be much safer for carrying.
Your best course of action when you see anything on the trail which is a hazard is to contact the land manager and notify them that some cleanup is necessary at the site. It pays to think about these situations in advance so that you can be prepared.