This weekend, take in some art made from maps, celebrate a 45-year-old caterpillar, and get yourself some amazing clothes for as little as $1!

Friday: Opening Reception for UnTethered: Drawing With Scissors

SF artist Mark M Garrett is presenting a solo collage exhibition of reconstructed maps, since "scissors have become his drawing tool and maps have become his muse." "The technique of hand-cutting old maps and painting in the gaps emerged for me as a metaphor of holding the world even as its outlines shift radically and unpredictably," Garrett says, a theme that might resonate even more strongly when you consider the dramatic displacement San Francisco artists have undergone in recent years. The opening reception for Garrett's show is tonight from 6-8 PM at Dogpatch Cafe (2295 Third Street near 20th Street). If you can't make it tonight, the show runs until April 19 from 7 AM-6 PM daily.

Saturday: The 45th Anniversary of The Very Hungry Caterpillar

If you weren't already feeling old, this'll do it: Eric Carle's classic kids' book The Very Hungry Caterpillar is 45 years old. You can celebrate the anniversary right this second by watching the above video of Carle reading the book, but there's even more fun to be had on Saturday, when Chronicle Books will celebrate The Very Hungry Caterpillar Day with a painting station for kids to create their very own section of the book, a read-aloud corner, cookies and milk for the kids (coffee for the grownups), and raffles for a range of Carlecentric prizes. It's all happening at Chronicle Books' Metreon store from 10 AM-12 PM.

Sunday SF Opera Costume Shop Sale
As Brock told you earlier this week, this Saturday and Sunday is the SF Opera's fifth ever costume shop sale. Prices of the garments "range from $1 to $750; costumes from the special opera luminaries collection are available upon request." The sale runs Saturday, March 22 from 10:30 AM to 5 PM (doors close at 4:30) and Sunday, March 23 from 10:30 AM to 4 PM (but you can't get in after 3:30), in the heart of Dogpatch at the San Francisco Opera Scene Shop (800 Indiana Street between 20th and 22nd Streets).