Really helpful to check the weight of our checked bags while we are still packing so we can rearrange what goes into various bags or even skip packing some items if the bags get close to being overweight. Finding out you missed the weight limit by 2 lbs at the airport and getting slapped with a hefty overweight bag fee would really irritate me at the start of a trip. We find this scale particularly helpful when packing scuba gear and golf bags to know if we have extra weight flexibility for optional items like extra sunscreen and optional/duplicates gear.