One of the problems is the rift in the space time continuum moves round the workshop steeling the tool you last used, only five minutes ago.
It holds onto things until you have bought a replacement and then pops the tool back in a really obvious place.

That's why I have two crimp tools, bought for a particular job that had to wait the second one to arrive. At which point I suddenly had two ready to use.
Back when I had two sheds and a loft full of computer spares I would quite often buy stuff on eBay rather than have to rummage.
In the end I freecycled all but a boxful.Hoarding is a mind disorder Im still not cured of.
Today I discovered I've lost a Quality Street tin (the old metal ones six inch deep) of spare keys including those of all the vintage bikes and the Austin.
Two house moves takes its toll.
I had the A35 key to hand so went into town this morning to get at least that one cut before I lost it as well -replacing a set of 70 yr old lock cylinders would be a challenge if not impossible now.
Timpsons in Asda? -don't have those sorry
Asian outfit in town ? No thank you sir
Tractor place -nada, but there was a New Holland with the front wheels bigger than my Massey Ferguson 135's back ones!!
Timpsons in the town indoor market? She looked at the computer and leafed through a paper catalogue .A lot of effort but, excuse the pun,drew a blank.
Getting worried now.
I could google somewhere in the other side of the country that could help but I can't risk posting the only key that I have.
Last ditch was the tiny old fashioned cobblers on the edge of town .
He looked at the key and asked how many I wanted,then took the blanks off the peg in front of me.
Life saver -and fairly reasonable twelve quids for two
The difference between a shop keeper and someone who just works there.
Got to begin getting all the others doppelganged before it's too late - never thought this situation could occur.