Starting at $699, it's going to be hard to find a more affordable gaming laptop than the Asus TUF Gaming FX504. For the price, you get an 8th Gen Core i5 CPU and a Nvidia GTX 1050 GPU, which is enough to play most games on low or medium settings. Keep in mind that such a low price point, means that some sacrifices must be made. But if you want to spend as little money as possible for a gaming rig, the FX504 is the way to go.
Dell Home, via its Member Purchase Program, offers its Dell 15.6" Laptop Gaming Backpack in Black/Red for $28.49 with free shipping. That's tied with our expired mention from four days ago as the lowest price we've seen for this bag. (It's the best deal we could find now by $20.) It accommodates laptops with up to 15.6" screens and features a shock-absorbent EVA molded front shield, adjustable shoulder straps, and a deployable rain cover.