A.H.
Routine, routine, routine. At night we use the 5 B's...brush, bath, binky, books, bed. For naps, we read a book, put them in their cribs and that was that. They also go to bed at the same time everynight regardless of what they're naps have been like that day. We've done this since they were tiny babies and they're 3 and 2 now. After a few nights of doing the same thing at the same time, they'll start to know what to expect next and it will get easier and easier until they don't put up a fight at all! Good luck!