I once got sent to an address to fix a computer. The customer was a magazine publisher. I was a little surprised to find the address was one half of a semi-detached house in a leafy London suburb. I knocked on the door, expecting to be greeted by one of the company senior staff or the owner who lived there and maybe worked from home (that'd not be first time that happened to me). Imagine my surprise to find this was the actual offices of the business and about 20 staff worked there busily creating those industry-type magazines that get given away for free.