Combination forgotten; opportunity cost spent

I have a combination Master Lock that I used to use for my locker in the gym in which I worked out. Alas, it has been so long since I belonged to that gym, that my memory fails on the combination. I thought I had 2 numbers, and tried all 40 in combination with those two (in addition to other screwy combinations) to no avail.

Ah... guess I'll have to spend the $10 or so for a new lock.

Did I just spend an hour trying combinations to avoid the $10 cost of a new lock? Doink !