How to deal with a boyfriend who procrastinates and is stingy at the same time?

At the same time? I'm not sure what connection they have to each other?
You have asked a one-liner. Very difficult to answer. Here's my one line answer:

If someone you are involved with has traits you don't like, you LEAVE.

What is the exact problem? You can't be with a ungenerous person.

Leave him, he's a bum.

Examine yourself. Why are you so irriated about his behavior? What are you expectations from him? Are you fulfilling the expectations in yourself? Sometimes, the things we dislike in others are the things we dislike in ourselves. They are just a mirror staring us back in the face. Speaking from experience. Learn, Grow and change yoruself first.