If it's my first time applying for a shop, I briefly provide my shopping experience: how long I have been shopping, how many shops I have completed, and what types of shops. I might include information that is pertinent to the shop that I'm applying for, such as previous experience, similar types of shop experience, close proximity to the location. For MSCs that I have already worked with, the brief note is kind of a formality. I usually write something short and to the point.