1. Maybe
2. Soon
3. Hopefully
They mean nothing. They serve no purpose other than having some one be allowed to be indecisive about what they want to do. I want people in my life that are decisive. It's fine if you don't want to do something. If you don't don't say maybe I will come. Clearly say that you won't be able to come. Making decisions is what makes people happy and less anxious, and for me, allows me to plan accordingly. In addition if you make up your mind and make a promise, follow through. End rant.
In addition to the words listed above, I will try to remove the list below from my vocabulary. This will allow me to
1. Be more exact in communicating my thoughts
2. Not use words that can be replaced by other words that better express the situation
Without further ado
1. Shit
2. Good/ Bad
3. Fun/ Boring
4. Funny/ Dull
5. Interesting
