Well thats pretty much the question.
Mine gave up the daytime nap at about 20 months (shes 2 now), not through lack of trying on my behalf, Id put her to bed at the usual time and she'd just play for an hour in her bedroom, so I thought transferring her back to the cot for daytime naps may help but she just played in her cot for an hour LOL.
Anyway, she now stays awake all day and goes to bed at 7pm (the same as always).
The only time I put her to bed is when she is having a tantrum which is not so often.
What do your toddlers do?