For those of us on the East Coast who watched most of our summer from under an umbrella, and those on the West Coast who don’t get a “real” fall, there is no need to fret. Thanks to fall 2009’s “summer in winter” trend, there’s no need to pack away the minidresses, shorts, rompers, tanks, and peep-toes once the temps start to drop. All you need are:

1) Leggings and/or opaque tights

“Winterize” your shorts, rompers, and minis by sliding a pair of opaque tights on under them. (I LOVE these rock candy-print tights by Look from London). If you’re like Michelle Obama and not big on pantyhose, go with leggings instead. Thanks to the plethora of options designers whipped up for the great ’80s comeback — exposed zip and “scrunch” details, and fun prints — leggings have emerged as one of fall’s “star” pieces. Invest in a few and rock them under minidresses, rompers and shorts, or wear them instead of jeans with a turtleneck layered under your fave boyfriend tee.

2) A bright scarf

This flame red Christopher Fischer scarf is totally on-trend as ’80s technicolors brighten up fall’s usually dark palette, plus, it’ll catch the color nicely in one of your print sundresses. Likewise, a printed scarf like this one by Kashmere will not only look great with a summer romper and wedge heels but it’s fully in sync with fall’s ragamuffin chic/prints-on-prints trend.

3) A turtleneck (preferably fitted and cashmere)

Think of a fitted knit turtleneck as your cool weather shell. Wear it under a slouchy tee, tank or vest as suggested above. Fearless fashionistas should try rocking one under a bright/print maxi dress.

4) A cardigan and a blazer

You heard it here first: Double-breasted cardigans and boyfriend blazers are the new jacket — at least in transition weather. Go with one that’s chic enough for evening events like this white 525 America cardigan (yes, you can[!] wear white after Labor Day… what’s fly is fly all year round), and get one that will go with your more casual outfits, like this boyfriend blazer by Alvin Valley.