These are some of the tips from WikiHow:
Arrive when you say you will arrive.
Don't overstay your visit.
Bring a gift to say thank you at the outset.
Keep your guest area neat.
Be reasonable about sharing a household bathroom.
Don't keep the hosts up late.
Offer to make contributions.
Leave a thank you gift on your departure.
We're staying with an old high school friend (who we put up for a week in LA a couple of months ago) who definitely does not have a guest room. We're staying for 5 nights and will likely be out of her hair most of the time. So that covers entertaining ourselves and we definitely have a hard in and a hard out time for coming and going. But what should we bring (if anything) to say thank you? Is it better to just take her out to dinner? Or do we leave her with a nice bottle of wine? Or just be a really good guest by not making/leaving a mess and being considerate (like not stumbling in, drunk, in the middle of the night)?
What do you suggest?