Never
Some with, some without.
My current EDC light has a lanyard, but not the original one.
Nothing that I normally carry has one. I have two larger, clipless lights with lanyards, both are Jaxman 26650 lights.
Definitely use lanyards, but not like most people do. Favorite carry is to put my thumb through the loop with the light hanging down the back of my hand and then bring the light up into my palm. Really secure with the correct length lanyard. There are other carries too, but they are for shorter or longer lanyards. You will Never drop a light when carried like this.
Not just you. 
If I still have the original box, etc mine may be found there. If I have discarded the original packaging the lanyards are in another box, labeled “lanyards”. 
Lanyards are useful for small EDC flashlights. For bigger flashlights, I put paracords on them, just to make them look fancy and interesting.
I carry all of my lights with lanyards, big and small, they’re much more ergonomic and secure this way. The ability to hang the light from things is pretty nice as well. I much prefer lanyards to pocket clips, which I find annoying and unpleasant in the hand. I have broken a few lanyards though by getting them caught on door handles and the like.
Nope, I never use lanyards on anything, including flashlights.
Yes, most of my lights get used at work. So they are usually tethered to my wrist to prevent falling into something they shouldnt while working aloft or in confined spaces. I also like having the lanyard tight on my wrist while walking the dogs, never have to worry about dropping the light while I grab a leash or dog while avoiding other puppers or traffic.
Generally no lanyard for a small light. Many suppliers offer a lanyard and clip at the same time. Easy to use.
Yes but many fail so end up being replaced with paracord.
I had found a source of good lanyards but didn’t buy enough before they stopped selling them (or did they close shop, i forget).
Always. Especially on lights I use for looking at “hé what’s going on in my backyard”.
My larger lights that have big enough lanyard attachment holes get 1/8” nylon rope. Something similar to this:
https://www.amazon.com/Nylon-Rope-inch-Solid-Braid/dp/B01KCOIQ2C
pocket guy
rarely use a clip
even more rarely any kind of cord or lanyard
i used to, makes it easier to fish out of pocket but also gets tangled up with things
I use them. Only for outdoors. Especially for fragile lights that I want stay in mint condition.
I only use them on a flashlight that would hurt my toes if dropped . Not on the smaller ones .
Everything except a few of the headlights gets a lanyard. Mostly paracord even if I have to use a little loop of 2 mm paracord to tie the bigger paracord onto. On smaller lights that may be clipped or carried in pockets of some sort the guts are removed from the paracord so it will stuff or fold more easily. Larger lights I don’t remove the guts. I don’t do fancy knots and designs. They are all just a single loop with one knot large enough to get my hand in. It is rare that I actually put it on my wrist but the cord comes in handy for other things such as catching it if it’s about to fall or hanging it or pulling it from a pocket or additional grip in a cigar type grip to activate a tail switch by catching the cord with the extra two fingers.
I started out using lanyards, it just seemed smart as I often use lights and knives on or close to water. After some time decided them more of a hinder than a help so I removed the lot of them from lights and knives so now I don’t use them anymore and haven’t lost or dropped any so far.
Hmm. I voted “not know”, because I use the lanyard only if there is high risk of dropping the light or losing it in an unrecoverable situation.
Normally, it is too much of hassle to fiddle the hand through the lanyard and a light dangling around is too distracting or even dangerous.
Sometimes I have velcro attached to one IF25A to be able to fix it to the outside of a glove if needed. This gives free movement and keeps the light at hand.
I only use them on lights used outside, which isn’t many.
Agreed, the couple of times I dropped a light was fiddling around in gloves putting the lanyard on or off.