What is the origin of the idiom "one's bag of tricks" and when to use it?

The idiom "one's bag of tricks" originates from the world of magic and conjuring. Magicians and illusionists would traditionally carry a bag or case that held various props and tools they used to perform their tricks. Over time, the expression has evolved to represent a person's different set of skills, techniques, or resources they can employ to achieve a particular goal. It is often used in a figurative sense to refer to the diverse abilities or strategies someone possesses.