I had a guy seriously (I think) tell me I was a genius for opening up the approach shot on the fifth from the parking lot.....I can tell you I had never envisioned that shot.
Back in our K and N days, at Forest Preserve National, we learned a lesson in the fact that the 8th was a sharp dogleg with a pond on the inside. So sharp, that laying up off the tee with an 8 iron proved to be just as good a shot as playing a full drive.
The second at Champions Run in Omaha was supposed to be a split fw hole, and they reestablished the "safe" fw but the carry is too easy on the challenge fw, and they let natives grow in on the "safe fw" making the only viable option to be the shorter, challenge fw. They play it as a par 4 in the Cox Championship since no one goes the long way.
From time to time, I have had holes playing uphill and into the wind that play much longer than anticipated, and where fw bunkers could be 240 off the back tee and be in play, whereas the "standard" 285 or whatever was useless.
And, right after pro v 1 was introduced, and it dawned on me that good players really were hitting that damn thing signifigantly further, we simply added some pot bunkers further down the fw if in construction. The fifth at the Quarry comes to mind. Pot bunkers are easy for the contractor to shape, and minimize the extra sand the owner needs to pay for.