i'll clarify a bit - the "clean your room" basically is pull up your blanket in the morning, put your "friends" (minnie, mickey, baby, lulu the lam) on the bed neatly and at night it's put your dirty clothes in the laundry.
if during the day she's playing then i tell her it's like school and you have to put one thing away before you can play with something else.
i do give a reward - i pay her - 5 cents to make her bed, 5 cents to walk into school without being clingy with my mom (mom pays her), and a couple other things to that if she does them all she'll get about 25 cents a day - at the end of the week (today) we take her to the dollar store and she can buy whatever she wants. (today she got a Dora flashlight - pretty cute)
but it doesn't seem to bother her if she doesn't get paid to make her bed, if we take toys away etc.. she's scream for about 5 seconds then its' next.....
You're not going to like it but I'm thinking your system is flawed. First of all, a four year old need INSTANT gratification and a nickel/5 cents just means nada to them. She is not connecting the nickel from Monday with the toy from Saturday-believe me. I drive a school bus and help kids with their homework all the time; money is not grasped fully for most until about 2nd grade. 2nd, a 4yo would be a helper in the tasks you describe but YOU should be a helper too-other than sitting there making her squirm. Maybe you could do the bed together and have her put her stuffed animals on it. Does she even care about the stuffed animals being on the bed or is that your issue? Why would she see a value in that? Maybe you could have a race to see who could get two animals on the bed first and almost always allow her to win by goofing around with yours-making it fun!!!??? I think you're expecting too much focus at a time. Have her throw the dirty clothes in the laundry some other time. She's getting dressed, brushing her teeth, making her bed, putting her toys on her bed and putting her laundry away? A WHOLE lot for a 4 yo!!! No wonder she's balking. My son had jobs to do at that age but we made them fun and did them together. If you're starting the battling at this age-you are in for a long life of battling. Good luck with the control thing; I think it's better to put her in control of what she finds important and otherwise be a kind and teaching parent rather than one that stands over a 4yo with threats. just sayin.
eta: I see you went with stickers. Stickers are instant and that will probably work better but a sticker for dinner? If you're making 'eating' a behavior it might become a behavior disorder later. Just put a healthy meal in front of her and if she eats-she eats. Do not make a battle out of this ever. My son just did a report on eating disorders for health class. His research confirmed that eating must be a relaxed, healthy situation for children or they are at risk.