Needing help for laid-back days outside Rome

Have you been anywhere else in Italy? Could you share the season? It makes a difference, for example in summer or early fall, something like taking the ferry to Ponza might be fun. Is that too small? Please share if you were thinking of village or city, etc.
Define "not too far away" in # hours on train.
One easy option would be to take train to Florence and pick any Tuscan town that appeals. Lucca has many fans (it would kinda drive me crazy, but nearby Pistoia has been calling me). I'd have Siena on my list. Orvieto also gets many favorable remarks here. I've had my eye on Viterbo, which is on the train line, but I wonder if you would run out of things to do/day trips in a week--depends on you!

San Casiano Dei Baggni

Train from to Chiusi, bus to San Casiano dei Baggni

Have friends who own and BnB there.

I’ve throughly loved my stays there but rented a car in Chiusi. Its be over a decade though so no up to date intel.

My sister and her husband spent a week in Orvieto this past fall (without a car)
I wondered if there was enough to do but they definitely enjoyed themselves.

You’ll still need to be in Rome night before your flight so you could certainly venture even further away.

Lago di Bracciano could be beautiful depending on time of year

Much depends on the month, I am a big fan of Orvieto about an hour north of Rome by train. If April or early May then Sorrento about 3 hours south of Rome. J

hey hey shay
when are you planning this trip?
another place to check out is frascati and nemi, about 20-30 minutes train ride from rome.
italymagazine.com/ lake nemi and its wild berry
it's an old article but tells you about the village and the areas surrounding it.
withlocals.com/ beautiful countryside day trip: castelli romani
visit the pope's summer palace and it's garden, ride around the area with your guide learning about this place known for growing wine.
lifeinitaly.com/ lakes of the castelli romani
stay in a hotel/apt with terrace or balcony on the lake with gorgeous views & small restaurants in the village
oldfrascati.com
read up about this family and their winery, cooking classes/wine tasting tour in frascati and visiting ceralli.it (a bakery & pizza oven making the "best porchetta". saw a special on TV about this place and it's bookmarked for my next visit.
lacucinaitaliana.com/ the buxom cookie of frascati.
nona is 94 years old and still bakes. many other bakery/pastry goodies to choose from
katieparla.com/ the three breasted woman from frascati
deliciousitaly.com/ nemi strawberry festival near rome (sagra della fragola a nemi)
hope this helps out with another area to check out from the hustle and bustle of rome. have fun and enjoy
GO NINERS!
aloha

Thanks so much to each of you. I was trying to be brief, but I was too general. We’ll be in Rome the last two weeks of this month (February). We have been quite a few places in Italy -Orvieto, Siena, the M towns, Tuscany, Umbria, etc. We’re now thinking of renting a car (suggestions for this?), and going South to Castle Gondalfo, Nimi, etc. . And, yes, we still have to get a room near Fumincino - again, suggestions?

You all are amazing! Thanks, Shay

This crowd thrives on specifics, lol. I've always wanted to dig into Lazio--I love white wine, so Frascati has been on my radar.
Sounds divine. Everyone who uses Autoeurope seems pleased with their service.
sounds wonderful, enjoy!