Personally for me I had a wind down routine of at least 30 minutes and I bathed lo every night (still do).
My routine when my lo was your los age was, sitting in bouncer with toys while Mummy cooked dinner, then while Mummy and Daddy had dinner put on a Baby Einstein video (good way for them to relax, be engaged and a little educated at the same time). Up stairs while bath running, get undressed, bath, cuddle and dry in bedroom, a small story (gentle sort, poem style works well, short) (or we skipped story), bedtime milk, say night night to animals etc in room, into cot and then just calming for bedtime sleep. From the time of going upstairs to getting in the cot took 30 minutes but he would also have the 30 mins of DVD to calm down to before hand.
HTH!