I am the authority on this issue! :lol: I used to do this on average of once a month.
On a chase trip in 2002, I did it twice in a time span of one hour in Elk City, Ok on the morning of a chase. Had to call AAA twice and have a locksmith come out. Twice. I unfortunately have about 10 witnesses and I think Bill even has all of this on tape (dreading the day that surfaces!). Insult to injury was that the same AAA operator answered the phone the second time and thought I was joking.
I have AAA, and you only have 4 roadside assistance calls per year on your membership. I usually used all four on locksmith calls every year. The rest of the times I just had to pay the locksmith $25 or have someone drive me home to get the extra key.
Anyway, my eventual solution was to just keep the extra key in my pocket at all times. This was cumbersome since the key was long and had the big black plastic knob on the end. I didn't want to hide a key on the outside of the truck, there really wasn't a good way to do that at least on my Ranger.
While I was on a chase trip I sometimes had someone else carry the key for me, but this wasn't a long-term solution and you had to remember to get it back.
Now, my new car is anti-idiot proof. If the engine is running and I lock the doors, it senses I'm about to close the driver's door and unlocks it as it closes. It also has a numeric keypad, and the code is on a card in my wallet and also on record with the dealer. These safeguards have prevented countless indicents.