Since all that stuff's smaller now, men can cart around quite a bit of crap in a blazer or sports coat, appropriate year-round (though you may want different ones for summer versus winter depending on where you live) all while dressing their outfit up a notch or two.
Blazers: fashionable purses for men. Love 'em. Like a hoodie but with much better storage capacity (yes, really) and gives a better impression. They even hold books pretty well—you know those fairly thin mass-market fiction paperbacks, from like the 50s-70s? They must have been designed to fit in the outer pocket of a suit jacket or blazer without bulging or throwing off the fit of the clothing. If you don't mind a bump on your jacket you can put somewhat bigger books in there, too.
Sad when Winter's over, the jackets/coats go away in the closet, and you have to start putting your wallet and phone and keys in your pants pockets again? Wear blazers!
