Enchanting an object simply means "blessing" it with positive energy.
As for the usage of enchantment,you may enchant an object to-
? Draw energy from it when required.
? For good luck purposes.
? For protection.,etc.
Enchantment will not serve purposes like being able to make that object fly,to control someone,etc.
Again,for example if you enchant a pen and write with it in an exam without studying,the least that can happen is failing in that exam.Thus,enchantment is just blessing.
You may enchant an object by many ways like putting your positive energy in that object,by lighting a candle and chanting a spell and passing the object over the smoke,etc.