If you want your sheets changed daily, your breakfast delivered to your room or even the reassurance of knowing the toilet has been sanitized, you may be a candidate for an overnight stay in one of the 48,000 properties that populate the U.S. lodgings landscape But hotels, motels and bed-and-breakfasts aren't for everyone, especially in these economic times when a seven-day stay can cost four figures. That factor coupled with the growth of the Internet makes the times ripe for exchanging or renting a home.