Just recently I discovered an application that I have really enjoyed using is Mobila Presentkort (mobile giftcards in English).  This is a cool application that allows you to send giftcards for a newspaper or an magazine.  If you send a gift card for an Ice Cream that costs 21 SEK it will cost you 31 SEK. When you decide to send a giftcard you enter the cellphone number where oyu want the giftcard to be sent to and you will be debited on your next cellphone bill.