Work, work, work.
(Actually, slow-fire benched groups at 25 yards with a compact pistol aren't exactly my idea of big dirty fun, so there's that.)
Printed out some targets.
And since I'll be shooting two-handed (and from a rest, to boot) it means that the traditional correction targets, a yellowed fading copy of which is taped to the wall of every shooting range in America, won't be useful for self-diagnosing any marksmanship errors. I'll be bringing my two-handed self-diagnosis target instead: