I entertain a fair amount, several times a week. Not large lavish affairs, but dinners of 4, 6, 8 people. I love cooking so I enjoy having friends over and trying new dishes. Normally, I buy and prepare all the ingrediants, and the guests bring wine or dessert. This works out great for everyone I feel. A friend of mine who lives very close, started to come to dinner often, I would suggest a wine when he asked what to bring. Somehow, over the course of months, I am no longer asked "what can I bring?" and he is now bringing his partner to dinner. They come over, eat the dinner, partake in cocktails and wine. I honestly would be happy with a six pack of beer, and appreciate the gesture and be happy. What do you suggest? Next dinner, even though I am not posed with the question "what can I bring" should I say, "if you are coming, please bring x". What do you think?