A double-breasted blazer/club jacket is a sartorial classic; usually worn with chinos or grey trousers, but nowadays you can easily hook it up with a pair of red or white pants, worn out jeans or even shorts.
DB's usually look the best on guys in their 50's or 60's, but if you're a young guy that can easily pull off blazers and suits, then I recommend going for a DB.
Sweden's most stylish man -08, top stylist Lalle Johnson's outfits always inspire me, he really knows how to keep his clothes quite simple, but still stand out.
Another thing what I like about him is that he uses many of the same little details that I use; rolled up pants, colorful socks or no socks, leather items always match... etc. (and no, I didn't copy his style) not to mention he's a huge fan of the sartorialist.
I think the coolest spring suits are navy colored ones; it can be dressed up (silk tie, leather shoes) or down (sneakers, lose the tie or wear a knitted one), the jacket and the pants can also be worn separately.
I think Lino Ieluzzi, the owner of Milanese Al Bazar, is somebody we can all learn from; just take a look at the perfect proportions, little style quirks (gloves in breast pocket, scarf in the side pocket etc.) and the sprezzatura!
If you like the classic Italian style, this is what you should aim for.
"Style is not fashion, it's something we have inside."