As fall sends the flip-flops and sandals into the back of the closet, it's time to luxuriate in new shoe options, from knee-high boots to super-smart pumps to sensible flats. But although styles might change every season, there are still some tried-and-true classic rules for both men and women about picking the right shoes among all those buckled, tied, heeled and zipped choices.

Know your must-haves

Although trendy styles can be fun to wear for a season, part of your shoe collection should be able to last through the ages. These "workhorse" styles tend to be more conservative in terms of accents and color, but serve you well through meetings, weddings and other frequent events. For women, a pair of plain black pumps should be a staple, while men can always depend on professional-looking dress shoes. Particularly with these classics, don't be afraid to spend a little extra, either. It may be a bit pricier upfront, but well-constructed shoes that will last for years – and are kind to your feet – are worth the investment.

Give in to brand loyalty

Let's say you're a Frye boots kind of person – you’ve had that pair of harness boots for years, and you buy outfits just to go with them. You may want to try other boots in the Frye line, like the sleek, office-ready looks that Frye makes, or some clogs for smart casual looks. Sticking to a favorite brand is especially helpful when shopping online, since you know the fit and already like the quality of the shoes you have.

Know the return policy

Some stores are adamant about refusing shoes if they've been worn, but sometimes, it's tough to know if shoes really fit well or work with your outfits unless there's some gentle wear involved. Before making a shoe commitment, it's helpful to find out how to break up the relationship painlessly.

Buy multiple pairs if shopping online

When cruising through an online shoe site, there might be several styles that seem striking – there are plenty of gorgeous options this season that are tempting. You're not alone in pining after more than one pair of new shoes this season – but how to choose among them? If you're at a site that has free shipping and an easy return policy, there's no need to be extra picky. Simply get several pairs and see what works for you at home. It's like shopping at a store, but without the hassle, and with the ability to judge whether shoes fit with your wardrobe.

Get a fun pair

With dependable shoes in the collection, you can also go a little kooky and celebrate the season. This year, fall fashion seems to favor short boots, thicker heels, and scrunched suede. But there are also some wild designs and patterns, as well as bright colors to compete with all those sedate wardrobe choices.

Wherever your fashion instincts take you, find a wealth of shoe collection choices at a site like Shoes.com, which features a wide array of designer styles for men, women and children. The site also has free UPS Ground shipping and super easy returns. Then, just make some room in the closet and enjoy stepping out this season.

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