K.Y.
She doesn't understnad at this point...she is becoming a toddler...and a toddlers's job is to test their boundaries. Soyou should keep telling her no...or if possible prevent it from happening in the first place, but she will try it again and again and again...she is learing her boundaries! As far as getting into stuff...well...try to have one area that is hers and hers alone...nothing is off limits...that way you will have a safe place for her and she won't have to hear the word no... If you are visiting other people...try to take some toys...or ask them if there is something they don't mind her playing with...coasters...etc...she just sees all these new things and wants to try at least one out!