~가지고 & ~(으)로 “Using” | Live Class Abridged

Last Sunday I did a live classroom all about how to say “using,” and taught both ~(으)로 and ~가지고. The particle ~(으)로 is the most standard way to do this, but ~가지고 is also commonly used in informal speech. However, they’re not completely interchangeable, and ~가지고 has several uses that ~(으)로 has and vice versa.