Well, I know V-Day is way over, but if you plan ahead, you can make around 2000g easily, On any level character!
So you know the "Gift of Adoration", that can drop "Romantic Picnic basket"? First, you must get a few of these. The easiest way I have found to do this is to have tons of lvl 1 characters in a major city. Well, you get 1 Gift of Adoration per character. So, log into your character, then the next, then the next, etc.. You will probably get a few of the baskets. You must not loot the baskets out of the box as they are BoP, and the box isn't. So, you might want to sell them, right away, for maybe 10g. DON"T!. You wait maybe a month or two. I know you are thinking "How do I keep it for that long? It only lasts 7 days!". Well this is where the exploit comes in; The boxes that contain the basket DO only last 7 days but this can be easily avoided. Keep it in the mail :P. Send it to an alt, then take it, then send it back. it will not count as time. This works 100% of the time. So, during the V-Day event, these things are abundant. But after it, they are extremely rare. So, wait a few months. Many people will want it who didn't go to the event or didn't get one there. Then you sell em to those people. I tested this on my main. it worked perfectly. I sold them on average for 100-250g. This is way better than if you had sold them during the event.
So, this is incredibly useful if you have a character on a different server, not funded by a main, try to twink without a friend or main, or just to make mad gold.
Enjoy!