The context of the dream is very important.
Desire to be like that person – To put one someones clothes, this dream indicates that you adore that person, his attitude or even behavior.
Desire to hide yourself – To put on multiple layer of clothes, this means that you feel vulnerable and try to hide yourself from negative influence.
Be more attentive – To forget to put on clothes in the dream, this may indicate that you are not very suspicious person and do not notice important facts in your life.
Desire to show yourself – To put on clothes and they are unbuttoned or with an opened zipper, this dream denotes that you want to relax and to show yourself freely.
* Please, see meaning of clothes.