Don't have one. Never had one. DD is six months and still sleeps very well.
For most of her little life she has gone down for the night at around 11 pm and sleeps until around 9:30 am. Except for one phase that lasted about 3 or 4 weeks where she was up 'till around 2 am, but at least she still slept for about 10 or 11 hours!
In the evening DH and I just hang out and do the usual thing - watch TV, work on the computer, etc. DD plays, eats, naps at various intervals and in no particular order (lol) right through the evening, though her naps are shorter than during the day. At around 11 pm she goes to sleep and stays that way. DH is often in bed earlier than that, I join him with a sleeping babe in my arms or we both go in together, and that's it, lol.
I think schedules/routines just lead to frustrations on those days when the baby has other ideas. If you just go with baby's cues and not give it another thought it is one less thing to worry about. Of course for some people it helps their family to have a routine, and it may be important for older babies (ask me in a few months, lol), but my motto is "if it ain't broke, don't fix it!".