My kids finally played together without fighting

7yo and 5yo actually cooperated for 45 minutes straight today. They built a "fort ecosystem" with blankets and stuffed animals and created this whole story world. No screaming, no "he looked at me" drama, just teamwork. When they finally came out of the fort asking for snacks my wife and I just looked at each other like we'd witnessed a miracle. Probably won't happen again for 3 months but I'm savoring this memory.