The sixties never really left us, but this season our favorite London-born, youthful, modernist trend of the decade is back in a big way. Clean lines, color blocking, mini skirts and retro hues have made their way into just about every September issue out there, as Prada, Burberry Prorsum, Jil Sander and other leading designers made the Fall 2011 runways pop with some swingin’ style. Ladies: Welcome to a mod, mod world.

But how to rock the trend without looking like you stepped out of Austin Powers, and without too much effort? Keep your outfit simple, and follow these 3 steps to easy, breezy, instant mod-town – all with pieces costing less than a Spa Week treatment.

STEP ONE:

Find an above-the-knee, brightly-colored or color-blocked skirt. Vivid contrasting stripes and polka dots are definitely game. This skirt should not be able to blow up in the wind – the material should be thick and sturdy.

Pictured: Turquoise 60s pocket mini skirt – $27; Black and white striped double layer mini skirt –$24.50; Pink Ponte mini skirt – $31.75

STEP TWO:

Find a contrasting pair of opaque tights. They can have some texture, or they can be plain, as long as they are alarmingly bright and cheerful. For a less-dramatic approach, go monochrome with a color a few shades lighter than your skirt.

Pictured: Front of the line tights in sorbet on ModCloth – $15.99; Cotton-skit leggings Sonia by Sonia Rykiel on The Outnet- $48; Solid Opaque Kate Spade tights in Curaco on Zappos Couture – $27.

STEP THREE:

Throw on a mod pair of shades… and keep the rest of your outfit simple! (Try: A light colored silky blouse, a single beaded necklace, a caped jacket, a chic pair of colored leather gloves.)

Pictured: Twig Coral sunglasses by Hayden Hartnett – $24; White Novelties (these are costume-y, but if you are going for the exaggerated mod look they’ll work when it’s not Halloween too!) – $8.58; Round tortoise shades – $10.

Check out this pretty comprehensive 5-minute mod fashion crash course. Hey mama welcome to the sixties!