P&O Offer

[Debs]

Dover to Calais route

Book before 28th March and get £10 off a return journey..

Offer code: 4PR6H9ZL3T

Discount can be claimed on any sailing up until the 2nd June 2013 providing your stay includes at least one night on the continent.

I dont know if this code is just for myself but its worth a try 

[Bryn]

On the subject of cheaper ferry crossings...

Portsmouth - Caen  return overnight for 1 bike 2 adults in June

Brittany ferries with 10% off. £266

Portsmouth - Le Harvre. Overnight. Etc..

DFDS.   £172.50

So worth shopping around