Ultimate Check List?

So I feel like I need a REALLY good & comprehensive checklist. Every website or book I look at has a different one. I'd like something that starts as far back as what to have done by the 18 month mark.

If you girls could tell me which ones you recommend, I'd appreciate it. I'd LOVE it to be an online format too, where I can just sign in and check things off as I go.

Sorry, I'm so picky.

this thread is amazing...it has everything...go to the to do list section and there are 2 links that should help you...hope this is what you needed

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Here's one that's just a checklist:

Checklist