How often do you move a large shelf or other heavy object from one wall to another? The process of moving the items off and then back onto the shelves is a major hassle. One example would be a heavy copy machine that requires the assistance of more than one person to move when cleaning the area around it. Can't you just use a ladder? You might think that you wouldn't need wheels on your ladder, but if it was smaller and you needed to move it along the wall as you painted, having wheels would save you the hassle of having to repeatedly descend the ladder, move it, and then remount it.

Consider the many things you'd like to shift around more easily if only you could stop for a moment. If you run a restaurant or similar business, you may wish there was a more efficient way to get food from the fridge to the prep area. If there was a cart in the fridge that workers could load up and roll out to the prep area, it would save a lot of time. With a cart, you can take everything you need in one trip, without risking back pain from carrying heavy items.

Caster wheels are incredibly useful in any situation. They are useful for adorning garage shelving, a ladder, or a photocopier. There is a handy little cart you can use to temporarily slide under your belongings if you don't want them attached permanently. Life will become unbelievably convenient for you.