Lottery in Paradise by Deborah Brown
In this book the girls face many adventures that lead to creative thought...in one instance they are are hired as limo drivers to retrieve a rich drunk girl and her drunkard friends home from break. The drive ends up being WAY more than the girls bargained for and way more than the rich girl's father could handle. Either way, they got the job completed and it was FUN reading it. But there is SO much more going on then crazy job assignments in their fanatical lives.