Generally you won't find a deal where Metro loses money but you can park for free in the lot at Springfield Mall. I'm told it's a walk-able distance....http://living-in-washingtondc.com/wmata-franconiaspringfield-metro.php. Wait times at Franconia-Springfield can be long though...
Aldi is a sister store of Trader Joes. A lot of their items are their own brand and I've read that they are the same as much more expensive items sold at Trader Joes. There is one in Brandywine on the west side of US 301 across from the Safeway shopping center. Not bad, pretty clean...
I had heard that it was illegal in MD to tint the driver and passenger side windows (front seat). Anyone else heard that? I have a four door sedan and would like to tint the side and rear windows.