Super Glue that is.

I buy a tube of Super Glue, use some, put the cap back on and then, promptly proceed to misplace it; by the time I find it, it is dried up in the tube so, I have to get more.

*Smart me* sees a pack with 4 tubes of Super Glue, buys it, cracks one tube, uses some then I put on "used" container with the unopened three and........wait for it...

I mislay the pack containing all 4 containers of Super Glue.

The only upside will be, when I find them, at least three containers will still be good.