I see that so many people out there carry so many things and I feel better! So here is what I am carrying, but more often in a medium courier bag and not in my pockets. My jackets are already too heavy.
Leatherman Juice C2. I love it! Replaced the much heavier Wave that stays in the car
Gerber LST micro folder
Mini Maglite AAA
Papertissues
few hansaplast strips - very useful - highly recommended
cheap leather wallet triptych for money, cards, ID, driver licence
Rayban Aviator rimless in case - almost no weight
mini USB mem stick
Many keys - home, office, cellar, two cars
Nokia N95 - helped me to get rid of the digi camera, small radio and ipod
Very light mini Nokia charger
Pen 3 in 1 (black, red, mech.pencil)
Mini agenda for notes
Stamp with my name
(I need the last 3 for my job every day)
Super mini Nivea and a baseball cap. I am working half the day outdoor and I need protection from sun, wind, cold
I tried harg to minimalize weight, size and number of my gear, but my bag still weights 1,8 kilos. My previous setup weighted almost 3 kilos!!
In my pocket there is only a 20 years old handmade mini folder. Made by a greek-island knifemaker, handle is bull-horn. To be replaced soon and pass to exposition case and history.