Buy the exact same shirt Dexter Morgan uses in the TV show "Dexter" at a reduced price. Choose Army as the colour. Standard price for this shirt is £26 however with promo code CELEBRATE you are supposed to get 25% off bringing it to £19.50, EXCEPT for some reason the price after code is £16.90 instead. That's a total saving of £9.10. Glitch?
Please note shipping is £4.00 extra unless you spend more money in your order. Still a great saving off the shirt's RRP.