I have a vague memory of an Every Day Carry (EDC) kit thread, but can't seem to locate it.
In general, a lot of people leave their house every day equipped for little more than their 'normal' day. Cyclists, by the very nature of their choice of transport, seem to be better equipped than usual. I don't have a picture of my bicycle kit, but it is pretty standard. Set out below is my EDC that comes with me every time I leave the house, though not always in it's pouch - I'll come on to that later.
Here is my EDC in it's transportable form, I'm an inveterate rucksack wearer - I actually feel naked without one and I have put together this kit to make the most of having a rucksack on me, but give me flexibility if I'm not going to wear one.
The pouch (top left) holds all the small pieces of the kit, keeping them secure, clean and readily accessible - which is important. For example, if I'm on a tube and there is a complete power failure, I can find and access my torch by feel alone. The back of the pouch is fitted with MOLLE straps which allow me to either attach it to my belt or turn it into a 'barnacle' on the outside of my rucksack if I need internal space. Normally though it just floats around in the main compartment.
The water bottle is made by Liberty, an American manufacturer, and is aluminium. It is tough, secure and holds 940ml of water. I prefer to carry a litre, rather than the more usual 500ml, as in a high temperature or multiple hour scenario that extra 500ml will be well worth the weight.
The pouch (bottom right) normally holds my mobile, but is deliberately a little large as I can turn it into a pocket sized EDC by cutting out some of the less essential items. For situations where I won't be able to carry the full sized pouch, it fits into a normal trouser pocket when loaded with whistle, torch, multi-tool and a pen. The micro-wallet will go into a pocket.
Gloves are an often overlooked piece of kit, but they can make a big difference in a bad situation. They are similar to cycling gloves, but have reinforced palms and fingertips which provides grip and puncture protection from glass shards, metal or splintered wood and the top of the gloves is padded over the knuckles and back of the hand. They do maintain dexterity and I can access and utilise any piece of my kit whilst wearing them.
On to the kit in more detail, beginning with the top left. It is a super-slim wallet, containing 5x £10 notes and a laminated card with both of my emergency contacts and my medical info (essentially 'give me all the drugs, I'm not allergic to anything'
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Notepad, pencil, biro and permanent marker - can come in very handy in a multitude of situations. Chapstick has two uses, the main one of course is to keep my lips from chapping in winter, but the other use comes if I find myself having to walk my way out of trouble. A thick rub under the pads of the toes and instep will help to slow the formation of the blisters that my dress shoes would give me.
Earplugs (in the ACS case) handy a lot as I wear them whenever I'm in a noisy pub/club. In addition they would aid hearing in a noisy crowd or constant alarm scenario. A Multi-tool is always good to have. It has a small blade and pliers as it's two most useful functions. Right below it in the picture is a Fenix E01 torch. It takes a single AAA battery and has a claimed burn time of 24hrs, which is more than enough. The light it casts is enough to see what you are doing and illuminates about 8-10meters usefully, it is also small enough to comfortably hold in my mouth. There is an argument for dispensing with a torch if your mobile has a light, as mine does, though I don't buy into it. In a scenario that might force me to use the torch, I want to preserve my phone's battery as much as possible, not to mention that the phone is breakable and awkward to hold and use as a light and wouldn't work in a really wet environment.
The whistle is an airfast (pealess) ACME Tornado and is really loud. I chose the Tornado because it produces a lower note than the classic Fox40, which makes it more likely to be heard at a distance by older people (i.e. rescuers) and helps it be heard against ringing ears. A whistle is a fantastic tool for signalling for help and helping you organise and control people, plus I use it coaching derby so always having it on me means I don't forget it!
Missing from the kit at the moment is a pair of nitrile surgical gloves and a small space blanket. The small space blanket doesn't just have to be draped over you as you huddle to get warm, it can be highly effective if worn around the shoulders like a cape, but underneath a layer of clothing to hold it secure. This frees your hands and allows you to continue moving whilst being protected from the cold.
ETA: Also a couple of Cliff bars are missing 
