-NEVER do any action while holdinga Bucket full of Lava.

-Gold ore, redstone ore and diamond ore can only be picked up whit an Iron pick or a better one.

-You can obtain flint using Shovels on Gravel.

-When you die,ou can get back ur items if u find the place u died.

-Enemies can spawn wherever there´s dark. Illuminate your constructions so they cant spawn inside your buildings.

-Never dig just under you,you could fall into a ccavern plenty of monsters and you won´t see a thing in the dark.

-Be really cautious if you hear water while digging. It could be Lava.

When building bridges or other high altitude edifications, hold the SHIFT key to use "Stealth". in that stance you can´t fall off ledges.

-Build an arrow made of dirt at your spawn point wich points at your base. That way you´ll never get lost going back to your base when dieing.

-Or the same puropse, build a high tower near your base, so you can find it from not too far away.