Harris Teeter has been expanding its membership-based delivery service in the DMV, adding numerous Maryland zip codes and completing its coverage of D.C. as of this week. More than 30,000 items — including fresh produce, meats and seafood — are available for next-day delivery for a flat rate of $59.99 per year or $7.99 per month. For a higher fee, you can get your order in as little as two hours. Unlike third-party delivery services such as Instacart, Harris Teeter promises that its refrigerated trucks will keep cold items cold and frozen items frozen throughout the journey to your doorstep. If you live in Rockville, Potomac or North Bethesda, the company tell us you should now be eligible to sign up.