I've set this up for Rail Travel as opposed to free pints in the Voucher Watch thread.
I'll kick it off by revealing something I only discovered in the last week or two. You can book midweek (ONLY) advance tickets on Virgin East Coast trains 24 rather than the usual 12 weeks prior to travel. I'm going to Scotland for the first time in 30 years this summer and it's an early train from the Cross, £16.50 each way with a railcard. It's costing me around £15.00 just for a "Cheap" day return to Hernia Bay in Kent from Bromley South in a few months time.