Advanced Housing

Advanced Housing is a feature in Terraria that makes it so if special items are placed in NPC houses NPCs in that house will do special effects.

Special Items and Special Effects
Guides Item: Books

Guides Effect: More guide pages

Merchants Item: Chest

Merchants Effect: More items

Demolitionists Item: Keg

Demolitionists Effect: Bombs sold have higher damage

Nurses Item: Healing Potion

Nurses Effect: Half price healing

Dryads Item: Potted Plant

Dryads Effect: Will sell random herbs each day

Stylists Item: Dresser

Stylists Effect: Will sell hairdos for half the price.

Goblin Tinkerers Item: Sawmill

Goblin Tinkerers Effect: New modifiers

Mechanics Item: Light Switch

Mechanics Effect: Will sell wires for half the price

Arms Dealer Item: Ammo Box

Arms Dealer Effect: Will sell ammo for half price

Wizards Item: Crystal Ball

Wizards Effect: Will sell new items

Witchdoctors Item: Imbuing Station

Witchdoctors Effect: Will tell how natural your world is

Pirates Item: Cannon

Pirates Effect: Will sell cannonballs for half price

Party Girls Item: Rainbow Torches

Party Girls Effect: Will sell new items

Clothiers Item: Loom

Clothiers Effect: New clothes to sell

Dye Traders Item: Dye Vat

Dye Traders Effect: New dyes and strange dyes

Anglers Item: Aquarium

Anglers Effect: Can do 2 quests a day

Steampunkers Item: Steampunk Table and Chair

Steampunkers Effect: Will sell solution for half price

Painters Item: Any painting

Painters Effect: Half price paint

Tax Collectors Item: Piggy Bank

Tax Collectors Effect: Can hold 20 Gold

Cyborgs Item: Any piece of Martian Furniture

Cyborgs Effect: Will sell new items