I am working on doing just that.

1. Install the Firefox add-on Pearl Crescent Page Saver. This allows you to take screen grabs of an entire site, not just what’s visible on your monitor. Set your blog/lifestream site to display a small amount of posts per page (I’m working with 10 a page for my first site). Then “Save Image of Entire Page” using Page Saver for every page of your stream. It will save as PNGs.

2. Open Photoshop and create a new document. If you are printing your pages to put up on a wall like I am, then it’s important that you determine how much space you have to work with. I can fit about 10 8.5×11″ sheets of paper in my space, so I’m working in a document that is 8.5×110″ at 300 dpi.

3. Paste in your PNGs and scale them to fit the width of the paper. I had to scale mine to 179%.

4. Test print. First, make a selection (using the fixed selection tool) that is 8.5×11″. Select the first page worth in your image, and print. In the print dialog box, be sure to check “print selection”. I am using a Canon Pixma iP4200 with borderless printing, so I had to set that up in the page setup. After you print the first page, make a guide at the bottom of the selection and move the selection down to the next 8.5×11″ area. This is when you have to see how much is getting cropped by your printer or in translation. I have to start my next print 3/16″ before the 11″ mark, because I lose that much in the printing process (I have no idea why).

5. Remove truly frivolous ink waste. My lifestream has a black background, and there is no way I am going to print over 400 pages of black strips. So when I take my screengrabs of my current lifestream, I will change the background color to white temporarily. The visual effect will be slightly weakened but a fair trade for cost.