Trilobites are great when first starting off! They give chitin, oil, pearls, and even black pearls on occasion. Use them to get your first teleport remote.
Awesome Teleporters have a death recovery option!
Spiked barriers are great for protecting early bases. Mobs will attack them until death.
All tames are weak when first tamed. Level them up to see their true potential.
If you want a high level mob and only low level are around, purge the area for a better chance of high level mobs.
When laying mont lines: Always start at the END POINT of where you need your mont (Greenhouse, Kitchen, industrical Cooker, etc)
then run pipes from your taps or crafting station to the mont source (River, lake, well, etc). This will ensure pipes works correctly,
are exactly where you need them, and will create better aesthetics.