Tips
Coal and torches
You can make torches from Lumps of Charcoal (burning wood in a furnace). You will need some Coal for some recipes later. Craft Super Glow Glass and cut it into slabs on a Circular Saw to get the most efficient light source.
Chopping trees
Use Shift+left click of axe/chainsaw to cut down whole tree.
Running
Use Special key (usually E) to run faster. But that will deplete your Hunger very fast.
Fuel items
The best fuel is Bottle Fuel that can be crafted in Biofuel Refinery from any 4 organic items (Sticks, Leaves).
Fertilizer
Cheapest fertilizer is Mulch.
Farming
Super Glow Glass provides enough light for growing plants underground in adjacent tiles.
Lighting
You can light cave surfaces from afar with Torch Arrows. But they don't always work.
Pipes
When a tube's item count exceeds a configured limit, the tube breaks and is no longer suitable for transporting items. You can repair broken tubes by right-clicking with a hammer.