Welcome to CapBiz A.M., your morning primer on business news with a focus on Washington.

Suburb of tomorrow: Many a disagreement over real estate developments center around the concern that when new buildings are added and new residents and workers arrive to fill them, traffic will worsen. So why isn’t that the case in Arlington? (CAPBIZ)

Leaving LivingSocial: Already in search of a new chief executive, District-based online deals purveyor LivingSocial is about to lose another top executive as its chief financial officer is bidding farewell after four years with the company. (CAPBIZ)

An energy shift: Newly proposed environmental regulations are shaking up the legal industry, prompting small energy boutique firms to join larger law firms in their pursuit of additional resources and broader legal expertise. (CAPBIZ)

Determined to drive: Cycling is a much more efficient mode of transportation for Washington residents than many people realize. So why do so many still rely on public transit or — often the even slower method — their cars? (WP)

Department soars: The State Department and Department of Veterans Affairs have grown more (by far) than any other federal agencies under the Obama administration. Meanwhile, you might be surprised which department has shrunk the most. (WP)

Trying it on for size: The LG G Watch and the Samsung Gear Live both hit stores on Monday, providing the first test for Google’s new just-for-wearables version of its mobile operating system. Question is, can the company get shoppers on board? (WP)

Gobbled up: Agribusiness giant ADM will pay about $3 billion in an all-cash deal to acquire Wild Flavors, a Swiss company that supplies natural ingredients to the food and beverage industry. (BB)

On Wall Street

Stocks slid back to start the week as investors paused following last week’s surge to record highs. (Get the latest updates here)

What’s on tap today

NFIB Small Business Optimism Index (7:30 a.m.)

ICSC-Goldman Store Sales report (7:45 a.m.)

Consumer Credit report (3 p.m.)

Northern Virginia Technology Council board of directors meeting (7:30 a.m.)

General Assembly Web development info session (7 p.m.)

Help: Which business books to pick up this summer (CAPBIZ)

Follow: Arlington Economic Development

Extra: Pot sales start today in Washington state. Here’s the scoop. (AP)