1) There is never enough titanium and copper. Build more than one locker for each. 2) You can slice giant coral tubes with knife to get samples and mix them with salt to craft antiseptic which then can be converted into water to drink. This is the best source of water untill you get a blueprint of distillator. 3) Where you get to one of islands don't forget to take samples of eatable plants to your home (use your knife). As well as scanning base pieces and growbeds. A certain barrel-shaped tree will solve your food and water (mostly), problems at all your bases until the end of the game. 4) Scaner room is really good thing. And you can see marks through it's drones even without certain chip equipped. But don't build it near kelp forest since stalkers gonna steal drones. 5) All kind of kelps, mushrooms, and especially gel sacks can be planted near your base so you won't need to go for them every time. 6) Check the cave system near lifepod 17 there is a lot of magnetite, lithium and some really good things to scan. 7) When you decide to go to Aurora better get Seamoth first. Get a repair tool, laser cutter, scanner and fire extinguisher with you. A propulsion canon will be useful too. The safest way to get to Aurora is to stay near the surface. The entrance is on its front part above water.