Hi, welcome to Arlington. Cherrydale is a great neighborhood.
There is a Safeway in Cherrydale; also a mom-and-pop hardware store on 10th or Washington Blvd., I think.
If you want to avoid Seven Corners, go to Potomac Yard off Route 1, where there is a Target, Best Buy, Staples, Barnes & Noble, PetSmart, etc. Just take Washington Blvd/27 south east to the Arlington Ridge exit, turn right on Arl Ridge, turn left on 23rd St. South and turn right on Rte. 1. (There are other ways to get there too that you might find easier). You can mapquest it:
Potomac Yard
3671 Jefferson Davis Hwy
Alexandria, VA 22305
There is a Harris Teeter just north of PY, but there is one closer to you than that, in Pentagon Row, which also has a Bed Bath & Beyond and many smaller stores. Just enter your address at this url:
http://www.harristeeter.com/other/st...e_locator.aspx
There is a Whole Foods on Wilson Blvd that isn't far from you, in Clarendon. Just go east on Clarendon Blvd a couple of miles and you will find tons of restaurants and bars. Also a Pottery Barn, Crate and Barrel and Container Store near the Whole Foods.
Hope this helps!