A mum a while ago said she did an envelope for bedtime with her lo.
In the envelope were pictures of things to do before bed,wash face/bath,brush teeth,pj's,kiss goodnight,stories etc.
Go through the pictures (print from net if needs be) 1 by 1 and get lo to pick them out and go through the actions.
When everything is done,calmly say goodnight and leave the room.
If she gets up,take her by the hand and calmly tell her it's bedtime and put her into bed.
After the 3rd time take her by the hand and put her to bed without saying a word and carry on until she's asleep.(I'v eseen this on a programme and it takes a while,but works)
I have always done a starchart and if she stays in bed she gets a star,if she gets out of bed she gets a sad face (print chart from
http://www.dltk.com )Jess goes mad if she has a sad face,it does the trick though.
Being 3 you might be able to explain early in the day what you plan to do at bedtime so she'll know what to expect.Don't give in,I've been there :wink: