For me it has to be a flattering t-shirt. The absolute unicorn of clothing items, in my book. Caught so many glimpses of one over the years, only to find the neckline was wrong, or it was too boxy, or the sleeves cut too high, or the fabric too thin etc.
But today, I not only glimpsed a unicorn t-shirt, but I actually managed to trap it, try it on and it is actually really flattering. Honestly. So, I bought it in every colour they had, and bought 2 in black.
I feel totally elated and strangely drained. I never thought I would live to see this day.