Never hold an Open House alone. You are allowing strangers into your home and it is better to have another person with you. This person should be another adult, not a child. Also have a cell phone with you at all times if possible and an auto dial button for 911. When showing the home, always have the buyer enter the room ahead of you so that the exit is never blocked. If there is a basement in the home, have the lights on and have the buyer go ahead of you, again always leaving the exit open for you if needed. Open houses can be on any day, not just week-ends, but should always be during the day, with hours that end before dark.