What Were Some of the Nicest Things Lucy Did?
As I and other posters have noted, Lucy's behavior was often selfish and unthinking, but I can think of a few instances where she was trying to help someone else with no (or little) ulterior motives of her own:
When Fred and Ethel fought and wren't speaking, Lucy tried to arrange a reconciliation by inviting each of them (without informing the other) to a dinner she prepared. She told Ricky that she heard Ethel crying all day and this was what motivated her to try to reunite them.
In another early episode, Lucy tried to help Bea Benederet catch Edward Everett Horton.
In another episode, Lucy tried to make a match between her friend Dorothy and Dorothy's boyfriend Sam by inviting them to dinner and showing them how wonderful married life could be. Everything went wrong, and Lucy should have cleared her plans with Ricky, but the friends ultimately became engaged because the Ricardos marriage had lasted so long despite these problems.
Lucy suggests a "Painting Party" as a way of fixing up the Mertzes awful apartment without it seeming like charity.
Any others?