I'm reading a romance novel and, while I applaud the author's and the publisher's efforts to encourage safe sex, suspect someone wasn't thinking clearly.
The protagonist and her new lover are taking a road trip and three times he's pulled a condom from his wallet. There's no indication whatsoever that he replaces the used condom with a fresh one each time. Carrying three--or more, I haven't finished reading the book yet--condoms in a wallet leads to problems neither considered nor explained away:
1) A wallet containing three or more condoms--presuming it also contains the usual wallet items, such as credit cards, cash, and etc.--would be quite bulky and uncomfortable for a man to carry in his pocket.
2) A condom carried in a wallet will become ineffective. The MedlinePlus Medical Encyclopedia recommends: "Do not carry condoms in your wallet for long periods of time. Replace them every once in a while. Friction from opening and closing your wallet, and from walking (if you carry your wallet in your pocket) can lead to tiny holes in the condom."
Sometimes, it's the little things that trip up writers.