Reveal Your Glittering Jewels

You are an expert in your own skill set, life story, and (ideally) value you can create for the company. However, the person you are talking to is not.

If they ever resist about something which you want, consider reaching into the treasure chest that they are buying mostly blind and revealing one of the many glittering jewels inside. They are going to get them all anyhow if they buy the chest, but each one you bring out decreases the perceived risk of buying it and therefore increases its perceived value.