@Notformer
”Would it be $100 here and there per congregation, or would it be multiple envelopes stuffed with cash?”
it all depends on when and where. In our assignment in a third world country you would get nothing at all, besides from some family abroad.
When back to an international assembly in your home country paid by the society the folks would invite you to their congregations to tell experiences. Sometimes we would leave the meeting with 200 US in the pocket.
Then we were invited to work at Brooklyn on a temporary basis. Some brothers wanted us at their meetings for talks or experiences. I felt ashamed when at a congregation with mostly African American brothers and sisters, the most kind, warm and friendly I had ever met, I went home stuffed with dollars.