You're lucky to have your little one just giving up day sleeps now! My DS1 stopped just prior to turning 2 and now DS2 refuses his day nap at 20 months and he gets crazy and passes out at 7pm.

Could you go for a drive so she can have a nap in the car? I sometimes resort to this if my DS2 gets too crazy and needs a little power nap to get him through.

Also as someone else mentioned quiet time if possible, both my DS like to watch tractor & train clips on you tube so I set them up and they will watch happily and most of the time quietly or peppa pig on DVD serves as quiet time too!