At Macy's, get a select pair of Speedo, Weatherproof, or Newport Swim Trunks for $9.99. Better yet, buy three pairs for $29.97 and coupon code "FUN25" drops it to $19.97. Pad your order with a beauty item (they start at $2) to bag free shipping; otherwise, shipping adds $9.95. That's about $7 per pair and the lowest total price we could find for three by $48. Available sizes and colors vary by style chosen.

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