(as) easy as A, B, C

See: as easy as pie

• a strong stomach
• a stud-muffin
• a stuffed shirt
• a stumbling block
• a sudden rush of blood
• a sudden rush of blood to the head
• as usual
• a sweet deal
• a sweet tooth
• as well
• as well as
• a sword of Damocles hangs over head
• a sword of Damocles hangs over someone's head
• as yet
• at a crossroads
• at a disadvantage
• at a glance
• at all
• at all costs
• at all hours
• at all hours of the day and night
• at all hours of the night
• a tall story
• a tall tale
• at a loss