To dream of wearing a slip, indicates the things which are not afraid to show or be different from others. If the dreamer slip on something, then it means that he is doing things he does not like to do, but is forced to do so. The slip could also represent the new features you finally showed to others.
Dream dictionary: thi dream meanings
To see an old-fashioned carriage, when you are dreaming, can be interpreted as conservatism in your thinking. Carriage is symbol that you need to change methods of your thinking from being old-fashioned and outdated. Additionally the carriage in the dream is also a symbol of high status in society and power to influence others.
The waste in your dream notices that you are wasting your energy and efforts to unnecessary things and circumstances. It is also a sign that you are too careless and wasteful person, you must consider what is important to you in this life. Also maybe you press yourself too hard and put all your efforts toward one thing which is not so important and do not notice other things which may be the main in your life.
The beaver is the animal who is very creative and able to build things from scratch. The dreamer who sees the beaver in his dream has the power to create his great life from nothing. The dream shows that if you work hard enough you will achieve great things. The beaver could also represent your ability to work as the team member. You have patience and courage to build the world you wish to live in.