Julie has probably sold her home by this time, but since someone has re-activated this older post, there are some safety tips I can suggest for owners showing/selling their homes without a real estate agent.
1. Pre-screen prospective buyers before allowing them into your home. Partner with a local lender or mortgage broker and ask everyone wanting to see your home to get pre-qualified first. That will weed out many of those with other ideas in mind than buying your home.
2. Safety in numbers. If you are alone, ask a friend or family member to come over for all showings. Also, carry your cell phone on you at all times during a showing in case you need it.
3. Always have prospective buyers sign a "guest book," get their names, addresses and phone numbers. Ask to see a photo ID.
4. Always plan ahead for showings -- lock up or hide valuables, prescription medicines.
5. Never lead the way when showing your home to strangers. Instead, point the way to guide them, letting them go first.
6. Never back yourself into a corner, always have an "escape route" in mind.
7. After all showings, check your windows and doors to make sure all are still secure. Criminals have been known to unlock windows while touring homes to come back later on and rob them.
8. Never tell a caller that you can't show your property because you won't be home at the time they indicated.
It is always better to be safe than sorry, so caution when showing your home is key.