WASHINGTON, DC (WUSA9) - Summer officially begins today! Now that everyone is out of school, it's time to enjoy the summer. We've put together some fun free activities the whole family can enjoy.

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The City of Manassas Department of Public Works and Utilities serves more than 15,000 customers and with the cold season coming, it’s just as important for Manassas to prepare for the cooler temperatures as it is for the home owner. Manassas City’s ongoing tree-trimming program helps to prevent most electric interruptions during storms, which costs $60,000 annually. With cooler nights already forcing many to turn their heat on, City of Manassas suggests these eight tips in helping to conserve this year’s heating bill. For more information and tips, go to www.manassascity.org.

 “Preparing your home before the winter months is essential in helping to conserve energy and save on heating bills,” said Mike Moon, City of Manassas, director of utilities and public works.

Here are some steps to help save on heating bills:

WASHINGTON (WUSA) --Due to severe weather moving through the D.C. area on Tuesday, the following after school activities have been canceled.

1. Arlington Public Schools canceled afternoon activities & late buses. Extended Day operate as normal. No change evening activities. #APS

2. All Frederick County Public Schools afterschool and evening activities are canceled due to inclement weather.

3. All after school and evening student and community activities in Prince William County are cancelled due to the potential for severe weather. School Age Child Care (SACC) will close at its regular time.