AndiR's way - plus, if it's for a wall hanging, it will hang better if you cut the horizontal borders WOF and the vertical ones LOF. Not always possible with directional prints but worth it otherwise.
PS If I'm doing one of those skinny inner borders, I press both seams towards it as it makes it stand out a little. Otherwise in general I press towards the border like Andi says but this can change depending on how/if I plan to SITD. :-D