If you live in the South East and have an annual Travelcard, you also benefit from a Network Gold Card, a legacy from the old Network SouthEast.
From 2 January 2015, the benefits are changing, in the name of simplification.
The all-day £5 first class upgrade is being removed. The £2 child flat fare is being removed Partner offer of a £1 railcard is being removed Virgin and East Coast train services in the Network area no longer participating.
A new -greatly expanded- Network Card area, which includes ALL of East Anglia and ALL of Chiltern Railways (so discounts possible to Norwich, Cromer (!) Kidderminster and Birmingham etc.) 1/3 off First Class fares in the new Network area A new £10 Partner card and they can choose the card they want.
I will miss the £5 rtn first class upgrade – in practice only South West Trains seemed to know how it worked.