Rivnuts from Homestead,PA on 2/27/2023 1:17:49 PM:
This question has been asked a few times on this forum and I’ve not seen a response as to where you would find free parking in DC. In the past some have suggested parking at Reagan National Airport might be your best option. You can easily ride your bike from Georgetown to Reagan Airport. The economy lot there charges $19 per day and a reservation is recommended.
Hopefully, a reader living in DC can give you a better/cheaper response.