Yeah, it took me probably a couple weeks to fully digest and adjust to the odd mix of structure and no structure in the post-doc process. Between match/APPCN, non-match, and APPIC notification styles and dates, the lack of a central application to help ground everything, and everything I had going on internship- and dissertation-wise at the time, I felt a bit overwhelmed for a little while there.
Luckily, after looking at probably a dozen or so sites, it finally sank in that most are asking for essentially the same mix of materials (with perhaps an autobiographical statement or individualized questionnaire thrown in for good measure here and there). The hardest part after that was figuring out how each site wanted everything delivered, and then having to relay that information to all of my rec letter writers.
Good times, good times.