This calculator is a perfect example. Do I need it? No! But it's so freaking different and Cath Kidson-ish that I had to ask my husband to buy it. Luckily he obliged ;p
Another thing I didn't need, this Tumbler. Why did I buy it? Because it came in my ultimate favorite color (white) and my current favorite color (aqua).
This was my worst haul. I came in to buy a piece of plane transparent folder and came back with all of these...simply cause they were cute.
Oh dear God. Is there a medication for this?