After playing the game for one week, upgrade Tom Nook's store to the following levels by performing the corresponding tasks:
LEVEL - TASK Nook N' Go - Spend or sell 25,000 Bells at Nook's Cranny. Wait one week from the day Nook's Cranny first began. Nookway - Spend or sell 90,000 Bells at Nook N' Go. Wait two weeks from the day Nook N' Go first began. Nookingtons - Spend or sell 250,000 Bells at Nookway. Wait three weeks from the day Nookway first began.