If you're looking for a cheap bottle of wine, or perhaps some candy or flowers, the easiest way to get some is to invite me over to your house. Mom (and Gram) beat it into my head that you never go to someone's house empty handed.
Don't believe my relatives? Then listen to Deepak Chopra, who, in his Seven Laws of Spiritual Success discusses this very principle. Even if you don't have disposable cash, Chopra says, you can write a simple card, telling your host how much you appreciate him/her, or pay your host a simple compliment (free!) when you walk into the house. Example: "It's so nice to see you; I really enjoy visiting with you. Thank you for inviting me over."
But never, ever go empty-handed. I'm so into this, that even when I'm told, "bring nothing," I still have to bring some wine, chocolate, or flowers. Or a compliment.
It's the right thing to do, and it's gracious. Feel free to invite me over. I may just bring you a compliment.