Whats the point of this offer ?

Two for one on WD40 !!

Who needs TWO cans of WD40?

One can is enough to last a lifetime.

The only reason anyone owns two cans is because they lost one, needed to oil something, and then found the original can after they'd gone out and bought a new one.

Trying to sell two cans of WD40 as a special offer is like having a "buy one get one free" offer on artificial legs, but only redeemable against left legs.