Generally, they like you to make an appointment so that a clerk is available to pull colors, styles, etc. for you out of inventory. But you can take your chances and walk in and hope they are not busy. Wigit Boutique (great selection of wigs) and Mimi's Wig Boutique don't require appointments. You can definitely walk in those stores, buy your wig, and go.
It's best to make an appointment, but not required. Great staff.
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