*Wellesley Free Library Fall book sale: It runs through Sunday, which winds up with a bag sale from 1-5pm

*Morses Pond guided walk: Let the Wellesley Trails Committee show you around from 9-10am Saturday

*Sustainable Wellesley Expo, house tour, bike ride: Get greener. Action starts 10am-2pm at Wellelsey Municipal Light Plant on Rte. 9

*Wellesley Fall Carnival: Presented by Wellesley Mothers Forum at town green near town hall from 10am-noon on Saturday (inside Middle School cafeteria if it’s raining)

*Funtastic Saturday at Linden Square courtyard. Saturday 2-5pm, stop by for face painting, balloons and other fun kid stuff.

* Princess Party: Linden Square courtyard gets dolled up Sunday from 2-4pm in support of the Ellie Fund’s fight against breast cancer. Advance tickets required; visit www.elliefund.org for tickets and more details. The event will include Friends of Broadway performances, manicures, photos, royal treats, and gift bags.