Yepyepyepyep -- I struggle mightily with this phenomenon and some time ago adopted the above practice [except my variant is 'good to see you'; my farewell is 'see you later / see you around' for consistency].

Has saved me a hella ton of aggravation and worrying.

edit : if I know from context that I've met someone before but don't recognize them / remember name, I just come right out and admit it straight away : "Hi! We met before but I've forgotten your name, sorry -- what is it?"