I used blogspot for school work ages ago and had to make several accounts for all of my work you have to pay for extra space
Do you mean photo space? Photos uploaded directly to blogger go to your picasa account which comes with 15360 Mb of space. I use it for all my photos I need to upload for web use (mainly because I'm lazy and picasa automatically scales the photos down to proper size), and after 5 years I still haven't managed to fill up more than 4,45% of the photo space. Also you can always have your photos hosted on some different hosting site and add them to your blog using [img] tags.