I usually play single-sim households, hence this question: If multiple sims in a household have the Prepared Traveller Reward, are the effects cumulative? In other words, if 4 sims have this reward, can the group travel for 3 extra days - the length of time they would each get individually - or do they get 12 extra days?
Given all the travel problems I've been having in my Wishmaster challenge, I'm thinking of getting them all this reward and just taking them to France at 11:30 pm on their last town day - that way I don't have to worry about getting them back after the trip. But I need to know how Prepared traveller works. Thanks for the help.