Tip #1. Dono t be tempted to skip over coal deposits on your journeys, you never know when danger happens and you need a cooked pork chop, or you may decide later on that yes you do need 20,000 blocks of smooth stone for that totally awesome castle. You can techincally skip it over if you don't actually have a pick, because if you're in a dire need of light you can always cook up logs in a furnace to make some quick charcoal. Redstone though? Unless youo re building a 16-bit CPU chances are you don't need it.
Tip#2

Do you find redstone logic gates confusing? Did you discover a dungeon for which you want to be able to use your now endless supply of skeletons but youo re not sure how to do so? There are a million guides out there that will teach you all of this and more. Take the time to study them and save them for later so you dono t have to dig up your projects again.

Tip#3. Playing with others online? How safe is that server youo re playing on? Dono t just stick your hard-earned Diamonds and Mossy Cobblestone in a chest out in the open of your obvious storeroom, hide it! The key is to be creative, and dono t hide things behind a painting unless you are sure that painting looks close enough to everyone elseo s texture that it actually hides something. Even then ito s not the most ingenious place. Invite a close friend to your humble abode and ask them to find your goods. If your friend has easily found them, try harder.