My DD23m is a nightmare! She would be the child riding the elevator alone if i let her 'roam free'. Thats not to say anything against you Sea Blue - just that i understand.
but finding exactly what it is that will occupy her for long periods is exhausting me.
I have this problem with DD too, She can find 3 random toys and play from 9-3 with them but if i find her something she isn't interested.
Mew, somehow I missed your post! DD is now 23 m.o. as of yesterday, so we have nearly the same little rascal. Any and all words of wisdom are welcomed!