When you have collected your 16 Stones and 16 Lumber, head to Gunther's house/ Carpenter's and as soon as you enter, the Home Improvement cut scene will trigger.
**Note** You will not be able to buy materials from the Carpenter's shop until you have collected your upgrade materials.
During the cut scene, Gunther will give you your very own craft table, which is how you will be taking care of your upgrades from now on, he will give you a run through of how to use the table if you have a Blueprint and let you know that you can buy Blueprints at his shop among other places.
The Craft Table will also allow you to move your existing stuff around inside your house as well as around your farm.
**Note** Be aware that if you build something new with the Craft Table that is a large immoveable item, it will need to be accessed and placed through the Farm Edit tool on the Craft Table before you can use the item.
After your house is all upgraded and functional, Eda shows up and gives you Hanako, the training cow! Sweet!
Make sure you go buy some Fodder and Grass Seed from the General Store so the poor thing doesn't starve to death.