Heh, sounds like JF had one of them moments! Been there done that (several times)!
I did!!To drill two miserable hole took 30 minutes and when I found a sharp one it took 2 minutes to complete the whole job. I would still be drilling away is I didn't find one lone bit.
Yeah, its fun to drill into something and after a minute you look and you are barely making a dent...you look at the bit and
it's off to the hardware store!
I guess other common problems like not having the right screws on hand (not so much at the lake, my Father has jars full of everything he's hoarded for the past 50-60 years!), out of glue, wrong paint, simple stuff like drop cloths or picture hanging stuff...it's always something!