For those more frequent travellers amongst us, Speedferries have issued a passbook of 10 tickets (5 returns) for £190, valid for two years from date of purchase. That's about what the caravan and car cost me return last year.
http://www.speedferries.com/speed_4.5_10-trip.html * 10 single or 5 return trips for a Standard car+5. (Lead passenger OR car must be used for all trips unless otherwise agreed with the SpeedFerries call centre).
* Never any surcharges.
* Valid for two years after purchase.
* No fee when you (via our call centre) activate a ticket for a specific departure.
* £10 amendment fee if you later change a fixed reservation but NO change in the ticket price, even if you change to the most expensive peak summer sailings.
* No restrictions on the duration of stay or sailing (subject to space availability).
I'm glad to see that they have done away with the silly surcharge they imposed recently.
Only downside is lack of crossings to choose from.
