I too work in the suit and tie business world. I carry this daily.
Keychain: Mini Mag Lite, Bar Creek 2" Blade Lockback, Timber Creek Whistle/Led Flashlight with Mini Bic Lighter zip tied to it.
Left Front Pants Pocket: Keychain, Kershaw Liner knife, Leatherman wave.
Right Front Pants Pocket: Kel-Tec P-11 14 oz. 9 mm pistol in Don Hume pocket holster, extra mag.
Left rear pocket: Altoids PSK
Right rear pocket: Wallet
Zippered DayRunner contents: TV/Weather/AM-FM Radio, 2 contractor trash bags, 2 3M N-95 masks, foam ear plugs, flourescent orange flat duct tape, pepper spray, 2 bandanas, 50 feet paracord wrapped on cardboard of notepad, 100 feet Spectra Kite line, Bottle Potable Aqua, Planters Peanut Bar, mini multi tool, large multi tool, lockback knife, 1 signal flare, 1 glowstick, large Bic Lighter, waterproof matches, whistle, mini air horn, AA Flashlight, 36 inches snare wire, 1 oven bag, bandaids, Motrin & Tylenol, pictures of family, phone cards, cash, 2 pens, pencil, zip ties, metal clip fasteners, large rubber bands, emergency numbers, calculator, spare charged cel-phone battery.
Larger items are secured with velcro - nothing falls out when opened. Also carry burgandy handled portfolio - usually holds business papers, Dayrunner, sports bottle of water, playing cards, HD aluminum foil, more N95 masks, foam ear plugs, and other survival items. Regards, Keys