When selecting a location for your bunker, remember that proximity to a reliable water source is crucial. Ideally, you'll want a site that's within walking distance of a decent-sized lake or river, but not so close that it's visible from the surface. You don't want to draw attention to yourself, after all.
Next, consider the local geology. You'll want a site with solid, unshakeable rock, but not so solid that it's impervious to excavation. Aim for something with a good balance of stability and compromise.
Finally, think about the aesthetic. You want your bunker to be a bunker, but not so ugly that it's an eyesore. Aim for something that says, "I'm a post-apocalyptic survivalist, but with a flair for design."
When it comes to lighting, remember that you're going for a "post-apocalyptic chic" vibe. Think dimly lit, but not so dimly lit that you're stumbling around like a zombie.
CFLs are a must. They use less power, last longer, and are generally more efficient than incandescent bulbs. Plus, they're just so... trendy.
But don't forget about the ambiance. You want your bunker to feel like a cave, not a cave with a bunch of harsh overheads. Table lamps, floor lamps, and string lights are all great options for creating a cozy glow.