[ calculating how much money i'll save this year since getting a coffee machine ]

january

• coffee made for myself: 83
• coffee made for others: 13
• coffee bought: 0

february

• coffee made for myself: 44
• coffee made for others: 3
• coffee bought: 0

march

• coffee made for myself: 47
• coffee made for others: 0
• coffee bought: 1

april

• coffee made for myself: 41
• coffee made for others: 0
• coffee bought: 1

may

• coffee made for myself: 52
• coffee made for others: 1
• coffee bought: 0

june

• coffee made for myself: 52
• coffee made for others: 0
• coffee bought: 3

july

• coffee made for myself: 33
• coffee made for others: 0
• coffee bought: 4

august

• coffee made for myself: 42
• coffee made for others: 0
• coffee bought: 1

september

• coffee made for myself: 34
• coffee made for others: 1
• coffee bought: 4

october

• coffee made for myself: 50
• coffee made for others: 0
• coffee bought: 4

november

• coffee made for myself: 50
• coffee made for others: 0
• coffee bought: 0

december

• coffee made for myself: 18
• coffee made for others: 0
• coffee bought: 0

total

• coffee made for myself: 546
• coffee made for others: 18
• coffee bought: 18