Coffee Savings

I guess the good news with my new routine of working from my room and doing art on my desk is that I have spent so no money on coffee going to cafes. I remember it was the 9th of September that I set up my table with the drawing box and lights and home-made coffee. Let's do some rough accounts here:

$12 Table Lamp
$95 Drawing Box
$17.98 Coffee Plunger and C4 coffee roast 
$124.98 Total

So let's assume I normally buy 2 coffees a day on any given day – since 9 September it's been 7 days. So about $4.20 per coffee ($8.40 per day for 7 days), I've already saved $58.8 in a week. Though to be fair, currently I am typing this at Ally & Sid and I've just bought a coffee that's worth more than $4.20.