The Best thing to Have when moving things up/down the stairs

Moving has always been stressful no matter how well it is planned. It exerts strain both physically and mentally. Before my recent move, I decided to sit down and list down things that make move stressful. One of the things was moving things up and down the stairs. once you box things, you need to lift those heavy boxes down your apartment to the truck. I have seen big stores like walmark using what they call a hand truck or dolly to move things around their stores. But here the challenge is to move things down the stairs. Could some one have something invented to ease that process? Again Google and Amazon came up the answer. The answer was 'Stair Climber'. This is a simple yet very innovative hand truck to moving things up and down the stairs. I did extensive research on some of the stair climbers out there. Each had its own merits and demerits and fundamentally each of these devices had what you call a 'tri-wheel' structure instead of a single wheel which gives the device the ability to climb up and down the stairs. The tri-wheel structure is a set of 3 wheels mounted together on a single axis separated 120 degrees apart. As they climb up and down the stairs, the 'three-wheel' assembly rotates and the next wheel in the assembly get in touch with the stair below and facilitates a downward motion. Below is a video of how I used this 'Stair Climber' to move things down the stairs. This stair climber are also called Stair climbing Hand Truck or stair climbing dolly. Here is the amazon affiliate link for the product I bought. There are similar products available in the market. do your own research. https://amzn.to/3G0Ko81