Pay $20 through Groupon and receive $40 to use at RedEnvelope.com. Choose from clothing, decor, and other gifts for Father’s Day or any occasion. You will pay taxes and shipping on your RedEnvelope order, but you may use your voucher towards shipping costs. Your credit will expire on August 31st (although it will be worth $20 forever if you miss the date). Note: Be sure to check out our coupon section for possible RedEnvelope coupons to use on your order.