Work is not lost if you remove the item from the queue and then re-add it. So feel free to just take something off the bottom of the queue, and then add it back to the top using ctrl+click. (or take something off the top then add it to the bottom using shift+click)
And here's a 'pro-top': you can't have a world wonder on the queue of more than one city at a time, but you can half-build the wonder in one city, take it off the queue, then build it from scratch in a different city. Doing this will get you the wonder as well the gold from the half-built wonder. This may seem like a waste of time... but it can actually be very good value to do this if you have the resource bonus for building the wonder.