Make her do it! If she continues to refuse time her out. I'm starting the same struggle with mine who is almost 3 and I'm about to start timing out for refusing to help.

When my children misbehave, I confiscate a toy. They then have to earn that toy back with good behaviour.
If my 3 year old or my 5 year old had pulled all the toys out and then refused to tidy them all away, I would confiscate all the toys and advise them that they would now have to work very hard indeed to earn them all back again.
Have you tried using a reward chart?

Go to Bratfactor.com and look at the House Fairy program. She's Santa Claus's sister and helps him check up on kids all year long. I find it helpful to tell my son to pick up one specific thing (like blocks) and then take a break (just a minute or 2) before moving onto the next thing. Just telling him to pick up his toys overwhelms him cause he doesn't know where to start.

What I did with my son was to make a routine of supper, pick up toys, bath, tv, bed. I illustrated this schedule and posted it in his room. If he finished quickly he had time to watch tv before bed, if not he didn't. We have family clean up time and we are all cleaning.

Our current sticker chart is for doing things the first time he is asked and not saying "I can't". After 40 stickers (he can earn multiple /day) he gets a toy he has picked out. Previous sticker charts were for potty and drinking milk.

Thanks everyone for your help. I will try this. I have already taken a toy away to get her to sleep in her bed at night. She is in her bed and I told her she will get it back if she sleeps in her bed.
I used the reward chart with potty training and she got candy small things like m&ms but don't want to use candy as she has teeth problems now. She loves sugarfree gum so maybe use that as reward.

I put toys in time out when my daughter says these things or refuse. They go in a time out basket on top of the fridge for a designated and appropriate time period. It works very well. Just somethign that has worked with my kids.

try making it into a race, saying ' i bet you cant tidy more than me' and as children like to win at everything, it will probably get her moving!! when she does tidy away, praise her up sp she associates the tidying with lots of positive attention

My son and I have been having clean-up races too. I dare him to clean up faster than me and he gets so busy trying to win he doesn't notice when I'm hardly picking anything up.

I found it! http://www.thebratfactor.com/
The first one went to a site called HIP design or something..
Cool site Hthomas98!

Or is that right? I can't find the house fairy.....

I have taken away toys, I have threatened to get rid of them. My daughter is 4 and she used to help clean up toys when she was younger but now she tells me to do it. I wouldn't touch them for a week or so and then just went crazy and had to pick them all up. I even tried to make it fun because it used to work. But nothing. So now i refuse to buy her anything new since she cannot respect her own things and pick them up. I hope you find out what works because i still haven't. Good luck to you!

My older kids 4 and 5 clean their rooms and we struggle with our 4 yr old the daughter. Well basically she stays in there till its clean. I tell her you got them out so you clean them. Now I do deep clean her room about once a month. If its time to eat she is allow to come out and eat but most go back to clean and I check on her often and the only help I typically provide is guidance to get her started like start with all the clothes then pick up your My Little Pony's...If her room is really bad she literally doesn't know where to start! We have in the past boxed all her toys up on two occasions. This was around her early 3's. I have 3 kids and they need to all clean because mommy is no maid and I even start FT school so I have been training them for basic chores and we will add more once fall comes! Mostly basic stuff pick up your clothes, rooms, take dishes to the sink...etc.