As a new Tesla owner, I'm having a hard time figuring out which phone app I should use to find available chargers while on the road. The three I have downloaded are PlugShare, ChargePoint, and EV ChargeHub. I'm not seeing a huge difference in the apps for the DC Metro area. However, I would welcome other people's experience and opinion around these apps and which ones you find to be the most accurate and helpful. Should I keep all three or default to a primary app for this area? If there are differences, maybe you can also advices on the accessories you need to have on hand to actually use these charge points. I typically commute around the DC area, but not much more than than...Any thoughts? Thanks!