In episode "Seven thirty seven" (S02E01) of Breaking Bad, while talking to Skyler who is taking a bath, Walt gets a phone call from Jesse which he dismisses due to Skyler's company. He looks out through a window, sees Jesse's car and steps outside to meet him, only to be greeted by Tuco sitting in the back seat who turns his gun towards him and tells him to get in.
How did Tuco know where to pick up Jesse in the first place?
Although Jesse and Tuco seem to have some minor connection (e.g. through Skinny Pete), Jesse first meets Tuco in season 1 and they never get together anywhere near Jesse's place. In fact I don't think they even swap phone numbers which leads me to wondering how they scheduled their first meet-up at the scrapyard but that's just detail.