This is the demo version of Two For The Price Of One, of which the final version can be found on the album The Visitors (1981). Notice it is sung from the first person perspective ("I") - this is also how ABBA sung it when they performed it live on 'Dick Cavett Meets ABBA' - whereas the final version is in the third person ("He"). The lyrics are also slightly different; if you listen carefully, there is even talk of suicide! ABBA singing about suicide?! Oo-er!