Got some friends? Do they like cake? You could be onto a winner here.
Recommend a friend to any class, and as soon as they book their space*, you get a very nice £5 coupon to use on the website.
The more friends, the more money you can earn.
*Make sure you tell them to tell me they’re your friend. I have not yet developed mind reading as a skill. Working on it though :p They can leave a note in the comments box when they check out.