Re the onboard shopping discount.
Again I realised how much value one can wring from those AY points when combined with this discount. I did some preorder shopping and bought also AY tax-free vouchers.
Optimal scenario - buying products with a total price (before discount) of 125€ or a multiple of that. Why so?
125€ -20% = 100€ to pay. Instead of taking out your point earning card on board, head back to the AY shop and buy a tax free voucher with a nominal value of 100€. Go to the shopping basket and move the slider to the extreme left 1000p + 79,89€* Print out the voucher, give it in lieu of payment to the FA on board.
Et voilá, you parted with less than 80€ for products originally costing 125€. Where else can you get such discount on booze in Finland?
There are also 50€ and 20€ face value vouchers, but the provide less bang for the buck, the 50€ is best at 1000p + 38,28€ Still not a bad deal.
NB - if you don't use up the total value, you won't get change back from the voucher, so it's lost. But you can always co-pay with money if the voucher value is not enough
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*all other combinations provide sharply decreasing value for the points - the other extreme being 33k points + 0€ for the 100€ voucher