I bookmarked my G+ pages in my browser and access them from there with one click
Hootsuite supports G+ page posting (you can even share to several Google Plus pages at a time) but I prefer direct posting to the page because this way I am sure what it looks at the end (thumbnail*) and what's more important I can tag important people I mentioned to notify them on the update...
*Hootsuite allows thumbnails but they don't always make it to the actual page update for some reason
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Everything will be ok in the end
If it's not ok, it's not the end