all in a days work

all in a day's work or all in the day's work  {adj. phr.},  {informal}
Unpleasant or bad but to be expected; not harder than usual; not unusual.
Keeping ants away from a picnic lunch is all in the day's work.
When the car had a flat tire, Father said that it was all in a day's work.
Categories: {adj. phr.} {informal}