Summarize the following:
Once you've finished building your mansion, you will want to fill it with furniture. Some items can be crafted in game (like bookshelves) but some items (like toilets) will require you to get creative and use other items that resemble what you are trying to create. This is a good time to get inspiration from other Minecraft homes. However, make sure you add your own style, and not just copy every detail from something else, Once the main house is done, you can continue to perfect your property by make a great yard, adding a pool, or building outbuildings (like a barn, carriage house, guest house, or pool house). You can share your mansion with your friends and other community members if playing in multiplayer. You can make your mansion a haven of community or just a great place for you and your friends to hang out and plan your adventures.

Summary:
Fill your mansion. Continue to perfect your property. Share your mansion with friends.