It has to be almost all the gun stuff I buy.
They are not all very expensive but at the end its a lot for stuff I cant even use.
I bought 4 Glock magazines when I wanted a Glock 19 before I even bought the gun, then I ended buying another gun so I have no need for my Glock magazines anymore.
Of course I had to buy a couple of new magazines for the gun I got but I then sold that gun without the extra magazines so I now have even more magazines without the gun to go with it.
Same with ammo, I was planning on getting a shotgun so I bought a bunch of ammo for it and of course then I didnt buy the gun ... so yeah now I have a bunch of useless ammo.
Maybe next time I should try to buy the gun first then the ammo and extra gear to go with the gun.
Oh well ...