It is quite common for kids at this age. my son was similar, but later he learned that it is useless to fuss around, this is your first goal to teach her. I read a book from public liberary, called "1,2,3.." or similar name. The main idea is: at this age, kid does not completely understand your explainations, so, do not try to talk to them like an adult. but you need to decide a rule with them: if she breaks the rule, 1st time, you told her "1"; if it continues, you said "2; when you count "3", you put the kid in another room "time out". if she makes a fuss, close the door, wait till she is calm down by herself(she might even try to destroy things, just let her do it). you should try your best not to show that you are angryor upset, this is what kid wants to see. don't try to educate her when she is crying and screaming, she won't listen. just count your number firmly. talk to your hu*****and , do the same. if you are consistant with your rule, in a month or two, she will stop when you count to 3. but be careful when you make up the rule, she is only three year old, do not ask for too much. but anything decided with her, never give up. also praise her or reward her (like take her to the park, special mother-daughter time, her favorite food) if she behaves well for special occasions, or for a week. it is easier to say than do it, but remember try to be consistant, and not to be angry, don't beat her, it only gets worse. we had drag out our son from the store, drove him bact home to time out for a couple of times. don't need to blame yourself if you can't keep the rule once or twice, but try your best to keep it. it worths the effort.