The mending spell would be insanely useful in the real world.
The mending spell repairs a single break or tear in an object you touch. For example, a broken chain link, two halves of a broken key, a torn shirt, or a leaking wineskin. As long as the break or tear is no larger than 1 foot in any dimension, you mend it, leaving no trace of the former damage.
It takes one minute to cast the spell but according to the rules of spells in the real world, you would not need two lodestones and could cast it ten times a day.
Any time you drop your favourite mug and smash the handle off, you can fix it right back on. Nothing in your home need ever remain broken again.
Money making opportunity
Consider the possibility of buying smashed and non-working iPhones, laptops, and other expensive but fragile items. You could get the ruined items at a fraction of their resale value. Then up to ten a day could be restored to full working order and sold for a lot more than you paid.
If you were willing to expend several of your daily uses, you could convert a broken down wreck of a car into something valuable. Admittedly, the limits to this spell might require you to work on the car for several days but as long as any one type of damage was less than a foot cubed (30.48cm cubed or just slightly more than the length of a school ruler), you could get the car somewhere close to factory new again.
Endless uses of mending
Other people’s junk could, literally, become a treasure in your hands. With the right contacts, you could become the leading restorer of fine art and antiquities.
If you felt like showing off, you could do the cut and restored magic trick in a way that even Penn and Teller would be left clueless about.
What uses of mending can you come up with?