Nothing. Here are some tips though:
The bed makes slight screeching noises when you move so my friend couldn't sleep well. I popped in some earplugs and had no problem with it. So bring earplugs if you're a light sleeper.
There are a lot of bugs since it is in the countryside, so when you leave the window open make sure to bring some repellent.
Go with a car! Because of Monica, her husband and her son we were able to go from the agriturismo to Pienza because they were so sweet to bring us there. But it is so much easier to bring your own car.
I cannot say enough positive things about agriturismo Cerreto, Monica
and her family. We had a small apartment with kitchen/dining room,
bedroom and bathroom. It was very spacious and clean and has all the
facilities you can ask for. It felt like home. The house and the garden
were gorgeous and tidy. It has the charm of rural Italian houses while
still being comfortable and up to date (free Wi-Fi). The pool area was
also really nice and it was nice to take a dip with the hot weather.
Monica and her whole family went out of their way to help us and provide
a comfortable stay. We didn't own a car so sometimes they would
drive us to Pienza, which was a great help. They were so friendly and
the service is the best! The breakfast was filling and delicious with
cakes, yoghurts and bread and drinks. It is a great start of the day and
the best breakfast I have had at any accommodation. The surroundings of
the place are gorgeous; the Tuscan hills and Pienza are nearby.
Great service, great place, awesome.