Further down the board he asked if there were any couples who do this - the answer is YES! Well, at least one couple anyway.
My OH and I love to do this, especially at weekends, and extend it over the whole weekend sometimes. We sometimes plan what we call a "lazy weekend", when, on arrival home from work on the Friday evening, we will immediately put on our nappies and stay in them until we shower and dress for work on the following Monday morning.
Most Friday evenings we eat out, and then go to a movie; it's great not having to use a toilet, and by the time we get home we are usually pretty wet. Then it's time for a nappy change and bed. On Saturday morning after breakfast and another nappy change, we usually go shopping, taking a couple of spare nappies with us. The rest of the day and Sunday we just relax, not having to use the bathroom unless we need to poop (neither of us are into that).
We have worn 24/7 for nearly a week in the past, and have talked about spending our entire two-week holiday next year diapered for the whole time.
To some of you who wear 24/7 anyway that must sound pretty lame, of course, but it's something we have never done before, so we might give it a try. If we do, we'll let you know how it goes.