Do you already have a buyer for your house? Do you want help in writing the contract and making sure that it gets to closing? Though Virginia's laws do state that dual agency ("representing" both parties) is allowed, it is not that wise to do so because that will mean that the agent cannot guide or counsel either party (i.e., recommend home inspectors, termite inspectors, title companies, closing dates and how it affects the seller or buyer, contingencies, etc.). All we're really allowed to do is ask you what you want to put in that blank on the contract form and then stare at you until you answer.
Not having your own agent (or the buyer not having its own agent) does not mean that the sale of your house will not go smoothly. It just means that if you have your own agent, you have the benefit of that agent's expertise in your corner and they can counsel you on what may be best and what you are legally required to do.
Many people sell homes being unrepresented. Many people buy homes unrepresented. It is just not necessarily wise to do so. You can be represented by your own agent and the buyer can be unrepresented (or vice versa).
If you'd like me to help by either representing you or representing the buyer (can't really be effective doing both), please let me know.