When I bought my car, I bought it knowing that it had a very small and easily removable patch of rust on the drivers side fender. The other day I noticed that there was rust beginning on the other side along the inside of the fender (also very small amount) So I decided to take off the bumper and see what was really going on in there...
To my surprise the drivers side wasn't too bad... just that same small rust patch it always had, still easily removable. The passenger side on the other hand was a whole different story, all that undercoating, was hiding an oh so lovely surprise, I poked it a little bit, and this is what happened... (that hole was not there before)

So I took a screwdriver to it (just to knock any loose stuff off)...

Here is the driver side rust that I thought was going to be the biggest problem:


Here is the smaller amount that I saw on the passenger side that I thought was going to be nothing big:

Apparently I was wrong.
Trying to decide if I should spend the time and fix it, or just buy another car, or both.