or decline skullcrushers. I did these for the first time the other day and they are great. Much better than flat bench tri extensions. They are now one of my favorite exercises. The decline suprisingly makes a nice difference in the movement.
I would like to do close grip benches as well but I don't bother due to lack of a spotter. I tried them on the smith machine once but we know how that is... terrible.
I also do the seated machine press down and they're pretty good, but the lying declines got 'em beat.