COME ON IN!
(Mind your head; don't tread on that ....)
I can't be held responsible for all that occurs in here, things happen in sheds that can't always be explained.
The shed isn't a glamorous place, it isn't trendy, but oft becomes a haven beside the mainstream of everyday life, a place to enjoy a quiet BA*away from the rest.
What do we find in the shed? Well, stuff, various grades of tat you wouldn't have in the living room or office, but as a true shedly person, won't throw away as it's "bound to be useful someday". The best stuff is referred to as "tqt" amongst enlightened shed dwellers, top quality tat you wouldn't dream of parting with, and sometimes don't even recall why you brought it in (probably under the subtle influence of the shed), but you do know it is never going to leave again.
Tools vanish though, on mysterious errands of their own through time and shedspace. They sometimes return and repose in a prominent position on a shelf. My pink-handled Stanley knife has appeared in the back bedroom just behind me, with a new blade fitted.
You needn't actually have a shed to have sheddy
leanings, though the one below has been staying with me for about 20
years 30 years.

Note the multiple patches and repairs to the felt roof; it has all sorts of layers under there, even bits of polythene, and enough felt nails to affect passing ships' compasses. I have thought of re-covering it, but the lichens sunbathing up there are probably specially evolved shed lichens by now.
UPDATE! I was running out of saucers, tins and buckets to catch all the water inside, so reluctantly decided to do a bit to the roof in 2006.

There were multiple layers of felt, polythene and rotted detritus up there. Not a lot of wood.
I've no idea how old it is. It was passed into my keeping after a career as a builder's site shed, it was then erected to keep the rain orf me motorbike, then followed me through two housemoves. I suspect it used to be one of, you know, those sheds. Ones which appear one day when you realise it has "always" been there, then when you go back there is just a blank space and nobody else remembers it. I expect it just fancied a bit of a break, put its wooden feet up and have a fag.
Here's a pic of it moving in, note how small the trees are!

Some pics from inside a shed here!
Some sheddy hardware here.
BA: Brown Ale, frequently consumed in sheds, likely contributing to the shedfolk's sideways look at life....
For further shedly experience, and sometimes a right good belly laugh, tune in to the newsgroup and lurk in the dusty shadows a bit, we're nice folk, if a bit obscure now and then.
You can find a shed FAQ and interesting sheddy bits at Dave Budd's site.