Not obvious stuff like dig a mine, but I mean what's your next goals? I generally build a few small click-together houses using a 3x3 low-material building style, and build them on a grid so I can connect them later if need be. I go for negative grain silos - 3x3 pits dug into the ground, with floors that you can stop off on and harvest your wheat. Block of water running down the center, to hydrate farmland, and a torch on each floor for appropriate light. After I've got at least one reliable source of food, I start building walls. More to keep out creepers than spiders, since I like the spiders to come to me. After that, I sort of lose direction. I usually end up with at least one micro-cobble generator for those I'm-not-tearing-up-the-ground-for-stone emergencies, or at least the ones not leaving the house for. What's your next step?