What a brilliant idea! You and your husband have a pretty good plan to get some extra 'me-time' for each of you. Really great! Wished we had something similar. Anyway, I would: - check all time-out offers - check Citylit and Morley college for day courses - get a friend to join you - go to a talk our tour in the Tate, Portrait Gallery, V&A ... - autumn day in Richmond Park or a good walk in Beckenham Place park - a trip to Petersham nurseries (Richmond) and a walk along the Thames - check out meet-up (online platform for all kinds of interest groups) - theatre, ballet, cinema matinee - a book in a great breakfast cafe in town - walk from Camden along the Regents Chanel to Little Venice - explore Boroughs of London you don't know well (for me, all of North London) - avoid shopping, leaves me miserable every time. Especially when I try to treat myself I'd better stop here. Enjoy yourself!