When it comes to writing your headline or descriptive ad, sweat the details. The more info, the more interest you'll get from potential buyers. For example "TV in good condition" is not nearly as enticing as "three-year-old 35-inch Sony Trinitron."

Technophobic? Enlist the help of kids. If you have teenagers in the house or the neighborhood, think about hiring one to handle all the online work. What might be unfamiliar to you is probably second nature for them.