Doors seem like one of the simplest parts of a house. They open, they close, and buyers rarely give them another thought. But when several doors occupy a small area, the way they swing can create awkward little conflicts that may not become obvious until after you move in.

Taking out the trash is probably not on your homebuying checklist. Yet it is one of those ordinary chores you may repeat hundreds of times after moving in. During a showing, take a moment to figure out where outdoor trash and recycling containers would be stored and how they would get from that location to the collection point.

Most buyers know to turn on faucets during a home tour. They check whether water flows, glance underneath sinks, and may test the shower. But a home rarely operates with only one plumbing fixture running at a time. A more revealing question is what happens when water is being used in two places at once.