Gravity assist with one of the larger planets to make a very narrow orbit seems to be the most efficient way. But you need the planets to align correctly to have an efficient route.

"I'll launch you into the sun once there is an appropriate transfer window to Jupiter" just doesn't have the same ring to it.

What if we catch a gravity assist off Jool, and do the retrograde burn at perijool to gain some free Oberth Effect DV?

Jebadiah is always so happy to spend 52 years only to find himself stranded on Bop.

I remember there was a trick where you could transfer fuel around to move your center of gravity then rotate the ship.

That's what I was thinking too.