Travel blog syncing postings/comments created during offline periods

I have some experience with Drupal and I want to setup a Travel Blog website.
While I'm traveling and mostly offline, I want to be able to write daily postings.
Followers may post comments to earlier postings on the live Blog.
When I'm connected, these need to be synced.

I assume that I'll need a local (WAMP) development copy of my Drupal site on which I can write these daily postings.
Which is the best mechanism to sync (local postings to live, live comments to local) the two?
(I'll be traveling with a Windows laptop)

Or is there a completely different solution using Drupal?
Or are there easier solutions for this outside Drupal?