For travel, I have a separate travel keychain that lives in my carryon bag to take on planes, with all the usual stuff (whistle. Photon, Swisstool, plus a zipper pull compass/thermometer. It has a snap release for a separate ring that carries a Swiss Army "Rucksack" model (which I like) that rides in checked luggage. (Also in checked luggage is a pretty comprehensive travel first aid kit I put together, using a lot of input from Doug Ritter's small kits, and starting with the Adventure Medical "Voyager" kit.) <br> A separate Zip , labelled "Carryon Meds" has the sort of personal items/first aid you might need in an airport or plane: aspirin, Sudafed, Digel, skin lotion, earplugs, bandaids, a blister pad, wipes, lip balm, floss. In a separate pocket are a bandana and cloth handkerchief. You might also consider an eyeshade or inflatable pillow.<br><br>I always travel with a checked luggage utility kit in a HD Ziploc containing a plastic coffee can lid (plate), knife-fork-spoon kit from Magellan's, a couple of extra HD Zips, garbage bags, corkscrew, duct tape, extra bandana and hand wipes. I find it handy for roadside picnics, street food, hotel snacks, etc.<br><br> Hope this helps.<br><br> -- KB