How do you cope with glasses?

[notoriusb.e.n]

Pinlock. No more fogging even with glasses. This in an Arai Chaser-V.
That and I now wear contacts - which admittedly adds up to more than glasses per year (circa £30 a month), but the money I've saved in petrol changing to a 600 fazer from a 1100 boxer twin more than covers that anyway.