1. This is it. Your final weekend to officially enjoy Crystal Lake. The beach will close on Sunday.
2. You have opportunities Friday and Saturday to drop off electronics at the Rumford Avenue Recycling Depot. Drop off your items from 8 a.m. to noon Aug. 16 and 17. There is a $12 fee for televisions and computer monitors, but all other items and devices are free.
3. The Concord Museum, Museum of Contemporary Art in Boston and the USS Constitution Museum are part of this week's Free Fun Friday.s