by Einsiedler
Two examples that are valid in my eyes too:Buy a card with "End of Turn" effect. This will of course work at the end of the turn where you buy the card.
More surprisingly - from the FAQ:
You have "Freezing Time". You roll "11" + something. Buy a card that allows you change a dice two a 1. Change a dice to "1" so that. This is not resolved for 1 VP because resolving dice is over. But as you already have "Freezing Time" this can now be activated at the end of the turn to have another turn.
Der Einsiedler