What did George Washington do after being president?

After leaving the Presidency in 1797, George Washington retired to Mount Vernon, his plantation in Virginia, and tried to resume the life of a farmer and plantation owner.

His advice was often sought by the political leaders of the US. From 1798 until his death in 1799, he held a commission as Lieutenant General and Commander-in-chief of the US armies that were being planned for any prospective conflicts. When he died on December 14, 1799, he was still the senior officer of the US Army.