In chronological order:
36. in the Pilot, Clark (no Superman then) saves the bus with failing brakes (and also saves all the people crossing the street).
37. Clark saves Perry from imminent heart-attack by recommending Paava leaves for his blood pressure.
38. Clark saves the Sarah Bernhardt theater (plus Beatris who is on the stage inside).
39. Clark saves a man trapped in a sewer, thus invoking the "bring a change of cloths" comment from Lois.
40. Clark saves the sensibilities of viewers everywhere by turning down the first few of Martha's costume designs.
Lonnie