TS big hugs...
no great advice here either.. my dd1 is 4 almost 5 and we do have some similiar problems.. alot of it stem from the fact that thanfully like your dd1 she really is quite clever and always seems to know what she wants and how to justify it!!!
You are just coming to the end of summer breal aren't u? and dd1 has spent most of the time with u? with my dd1 i could not have her day in/day for a long period.. not trying to sound like a bad mummy but she gets incredibly bored being at home and gets very demanding and cranky!!! she currently goes a couple of days a week to a playscheme for the summer holidays... she really enjoys it, it uses up nearly all here energy so that the days she does spend at home, she is happy baking/playing with her sister or go out and about with mummy!...
not saying that what i do is a solution and i know that you are constantly entertaining her but maybe for nxt year?
anyway enough waffling from me 
tightening MrsM OOOOOOOHHHHHH
So pleased meet up went well..
i think we should hire a mini bus to pick us all up and take us to dizzy's house
..
finally little rant from.. havig bbq on sun.. dad over today which is great.. got a text from step d asking if she could stay tonight as she is still having bad morning sickness and her bf is playing cricket on sun..
now i am going to be so busy 1. don't need to entertain anyone else til the bbq 2. its not my fault that her bf is playing cricket and cannot bring her down at the actuall bbq time 3. my complete sympathies re ms but if she she is feeling that bad i need need here moping about when i am trying to entertain/feed the masses.. aibu to just say sorry but i cannot accommodate u tonight???