In fact, I booked eight round trips (I had two browser windows open, and posted my comment here before completing the full payment process, which is rather laborious when you've to enter details and tick/untick boxes eight times over!)
Here's the breakdown, including of course the 16x credit card handling fees :mad:, which I'd forgotten about:
PAYMENT DETAILS
*********0.16 EUR Adult
*******189.92 EUR Taxes, Fees & Charges
********29.92 EUR Aviation / WCHR Levy
*********0.00 EUR Car Rental
*********0.00 EUR Insurance
*******220.00 EUR Total Paid
I've looked again at the T&C's for sale flights from Shannon to Beauvais and, while they do say 'Fares include taxes, fees & charges', they also say 'from €10'. So I assume that what I bought is not actually a 'Sale' deal, just a bunch of €0.01 flights, plus taxes, fees & charges. Sixteen flights at €10 net would have amounted to nearly the same, anyway -
assuming I could have got them for the dates I did (I've just checked on their cheap flights finder, and those flights are no longer priced at €0.01).
Anyway, €27.50 per head round trip to Paris is good enough reason for me. A weekend return to Dublin with Eeyorne Road Airing costs twice that!