Hold right-click when you're making items and it will craft up to a full stack, Magua.
Also, that goblin tinkerer will move into your house once you have a space for him. When he does, he has a tinkerer's workshop you want to buy. The tinkerer's workshop lets you join some items together (it's a crafting station). For example, if you have Hermes Boots, you can tinker them with your new shiny Rocket Bots and make Spectre Boots (look, one fewer accessory slot needed!). Additionally, if you have an Anklet of the Wind and an Aglet, you can craft Spectre Boots with those two items and make
Lightning
Boots, which are amazing.
The tinkerer also has this "reforge" option when you click him. Reforging costs money and gives random results, but has the possibility of crafting your items into better ones. Accessories can have better defense bonuses, for example (+4 defense on each accessory gives you an extra +20 defense, which is great). Works with all tools and weapons, too.
You can also go up. Your world should have at least a couple of floating islands and those have Treasure in them (Lucky Horseshoe, Shiny Red Balloon and Cloud in a Bottle are very useful items and you can tinker them all together).
You can ignore the Dryad for now. The Corruption will slowly spread over dirt, but if you put sunflowers on green grass at the edge of the Corruption, you won't have to worry about its spread until it goes batshit insane in Hardmode (and you have a lot to do before you can get there).
If you don't have one yet, I'd suggest making a small glowing mushroom farm out of mud and mushroom grass seeds. Keep it
very
small, they yield a lot and making it too big will convert it into a glowing mushroom biome--and those have really really nasty Hardmode-like mobs. You'll need glowing mushrooms to craft the second tier of healing potions, so a small farm (something like 20-40 blocks total) is a good investment.
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No parenthesis were harmed in the writing of this post.
