Here’s what’s happening in town today, June 21:

• Insomnia Seminar at Wilton Senior Center, from 10 to 11:30.

• Open house: 1031 Ridgefield Road, from noon to 3.

• Open house: 8 Stonecrop Lane, from 1 to 3.

• Open house: 26 Cavalry Hill Road, from 1 to 4.

For more things to do, check the Wilton Bulletin Board.