My DS is so spirited that you cant really wind him down. As long as he is up he wants to be going. But here is what we have done..
(18 months), Bath, Jammies, say goodnight to the sun, shut off all the lights in the house, rock and have bottle, then into bed.
(2yrs) Bath, jammies then bottle while mommy rocked him and sang silent night. Finish his bottle then rocked another 5 minutes and into bed.
Now (2 yrs 2 months) he has decided he LOVES mickey mouse clubhouse so we do the same routine except that after his bath and jammies, he gets to sit on the couch and watch Mickey Mouse for 30 minutes, then we do the bottle,rocking,singing and into bed.