Can anyone suggest an inexpensive-clean place to spend a night in P.V. that is both close to the airport and the Central bus station?
City: Puerto Vallarta
There aren't really many hotels near the airport and bus station. There is a motel or two right there on the highway. While I haven't stayed in them personally, I have stayed in similar places while traveling through Mexico. You won't need a reservation. some of them are available hourly. Just ask to see the rooms first. Many of those types of hotels are actually very clean and nice inside, despite the seedy exterior. The desk clerk may not speak English (unlike the big hotels where everyone does), so if you don't speak Spanish, you should try to get a cab driver that can translate for you.