The TTI is that one piece that instantly switches the mood of your outfit. Commonly thought of as a day- to- night switchover accessory, it can be so much more than that. Take a casual outfit and add a hat, it instantly looks like some effort has been put into your coffee date. Switch it out for a leather jacket and the look becomes a little edgier and a makes a bigger statement. I usually think of these pieces as an 'investment', not so much by the number of times I've worn them but by the impact that it has on a simple ensemble.