It's unlikely such an upmarket salon would be interested in discounts – but it's worth asking at the time of booking at smaller, local salons. They may charge less if they just cut your hair and you style it yourself at home.
What Gordon could do is get himself a hairdryer that will give him a professional finish at home.
The Tesco 2000W Hairdryer, £5.49, is a powerful model with a professional-standard motor and it's hot enough to deal with strong, thick hair. It's basic, with just two heat settings, but unbeatable value for money nevertheless.
Babyliss Eco Dry, £19, from Boots, uses half the energy of a standard 2000W dryer, so would save you a tenner a year on your electricity bills if you spend ten minutes every day drying your hair. And it's a great price, too, especially as it also features ionic technology to help smooth and reduce frizz.
Or there's the John Lewis Ionic Hair Dryer, £17.50, which uses extra air pressure to dry your hair faster, even if it’s thick, with three heat/two speed settings and ionic technology.