I carry a leatherman multi-tool.
I carry a brown Case knife my grandfather gave me just about everywhere i go
Yes sir, I appear nowhere but on an airplane without my Swiss. I actually have thought of starting a blogspot on just how many uses I get per day out of that handy device. When I'm not working around the barn or in the outdoors, it does a lot of handy stuff around the office. The can opener is a great staple puller, and I'm always fixing minor things with the tweezers and screwdrivers. The scissors do a great job of getting into things as well.
Been carrying one every day since around 1982. Victorinox. I feel half-naked if I mistakenly leave it at home (happens about two or three times a year).
They keep chancing the names and features: Explorer, tinker, super tinker.
I like phillips head screwdriver coming out the end so you can use it as a normal screwdriver. For some reason most of the models have it coming out sideways (Like a tee handle), where it does me no good. No figuring why they do this.
Once you decide that you like the phillips head oriented like that, it narrows the options down dramatically. I also like the scissors and use the magnifying glass quite a bit. It was sad when they reduced the quality on that to save a penny or two.
I do so, too. Years ago I attend a client of mine to his judicial hearing and I forget about my swiss army knife in my pants pocket. So the alert of the safety testing began to warn the security guards of the court. Kind of a funny situation. The guards also laughed and said it´s quite normal for a guy to carry such a knife. it´s practical and useable.