Raising a kid doesn't come cheap. There's childcare, plus the downright shocking amount of diapers, clothing, shoes, and food growing bodies go through; tack on some fancy programs, and costs really hit the roof. But that doesn't mean affordable enrichment classes aren't out there; in fact, there are some great programs in and around Boston where kids can learn and hone new skills, at no cost to you. We've listed some of our freebie faves below; and don't forget to check out our new Deals page for lots of free trial classes in and around town.

Art museums and kids aren't always a natural pairing. But here in Boston, cultural institutions like the Museum of Fine Arts and the Institute of Contemporary Art go out of their way to be welcoming to children, providing them with special guides at the door and recurring educational programs. But our family's favorite is one that remains relatively under the radar, tucked away as it is in the farmland of Lincoln: The deCordova Sculpture Park and Museum, which reopened on October 6 after a month-long closure as new exhibits were installed. Here are some tips for making a perfect day of it–and helping children appreciate the art and nature that surrounds them.

From storefronts to Starbucks beverages, pumpkin is everywhere. But don't think kids are tiring of seeing, tasting, or celebrating the humble squash that heralds Halloween season. This week, they can get their fix at a number of events that feature pumpkin-themed activities. Artsy kids can make some spookily beautiful holiday decor close to the city, while science lovers are invited to dig into pumpkin science in the north 'burbs. At the the end of the school and work week, a trip to Providence would be well worth it, since the region's most stupendous Jack-O-Lantern display is illuminated at the zoo.

For more science, drop by Brighton for a kid-friendly exploration of buoyancy; or for more Halloween fun, don't miss the big parade that officially kicks off seasonal fun in Salem. Whatever you do, don't forget to bookmark our Events Calendar, since we're adding new activities to the mix each day.