catering

So we have flat in Oban, which we used to let, however now that I can spend some time here, we are planning on making it a self catering apartment so we can block time off when we want to use it. I have never let the property out for self catering before and have no expertise in this area...

Help! Got a tradesman coming today to start some work on my roof. It's just occured to me that he may ask for refreshments, and I'm not sure I've really got anything suitable. Does anyone know what they drink? I know they tend to like a mug of tea, but what type? Are you supposed to invite...