Here's how I plan on making my free storage last a very long time:
First off, I edit my photo until I'm happy with it, or until I'm happy with it for today (am I the only one who goes back and re-edits photos weeks or months later?). Then I save a full size copy of it in my pictures. I keep my photos named by the date they were taken and organized in a folder by year. You may have a better way...
So, anyway, click "save as":
I choose to save mine "in a version set with the original". This keeps your original (unedited version) and your new version stacked on top of each other in the photoshop elements organizer. It adds "_edited-xx" to the name of the photo.
I save it at its maximum size, that way I can always go back and print a poster sized photo if I wanted to. : )
OK, so now I have my "good" copy of my edited photo, all safe in my archives. Next I put my watermark on the photo (my daughter, Grace, taught me how to create a watermark brush!).
Then I click "Save for Web":
The following screen pops up.
I change the "preset" to "JPEG Low", and I change the largest sized side to 800 pixels, making sure that "constrain proportions" is checked off.
This changed the size of my photo from 1.23M to 20.4K. I have NO idea what that means, but it sounds like a LOT. I save this copy on my desktop, because really I only need it long enough to upload to blogger. (Remember, I have my full sized, not watermarked, "good" copy, safe in my pictures folder).
Oh, and I almost forgot, another HUGE plus? It takes mere seconds to upload these smaller photos to blogger, rather than MINUTES. I don't know about you, but MINUTES is way too long. What are YOU going to do with all your new free time now? I mean since you're not waiting for blogger to upload?