Art matters. Suckers for a good pun, we mention this in relation to Olympia's most sustainable gallery, Matter, which opened in September 2009 and prides itself on featuring "recycled, reclaimed and responsibly harvested materials."

On the last day of July, join Matter for a "Midsummer Gathering," which will reportedly include light refreshments and, more importantly, a chance to mingle with the many artists who make Matter such a sight to see in Olympia.

Michael Gray and Vince Brown will provide music.

[Matter, 4-7 p.m., free, 113 Fifth Ave. S.W., Olympia, 360.943.1760]