The pieces on the board are starting to gather. When you only have four locations in the opening sequence (The Wall; the Last Hearth; Kings Landing; and Winterfell), the show is starting to tighten up.
Smart move for Cersei to welcome Euron into her bed; now she has plausible deniability that the child she is carrying is Jamie's. Not that I think she's going to live long enough to deliver it.
Sansa being worried about feeding the Army is a nice nod to the logistics that most shows never consider. How do you feed, quarter, transport, and equipment southern armies for combat operations in the North? Ask the Germans in WWII about that.
Makes you appreciate how easy the Night King has it. He doesn't have to worry about feeding, quartering or clothing his troops. Every battle he fights adds more soldiers to his army, while reducing the enemy. Frankly, the Army of the Dead is pretty much invincible. Unless you kill the head honcho, then everybody else dies.