I've been getting tons of questions about how I print multiple photos on one 4x6 sheet... I did a tutorial a while ago, but I've changed how I do it since then, so I thought I woud share my new technique, using Picasa, a free program from Google.
Make sure you select the size of photo you would like to print. I selected 4x6 because that's what I print at.
I always select grid collage, because I want even sized photos. If I want to print instagrams I print 6 per sheet & 3x4s I print 2 per sheet. You can also change the orientation of the print, so if you have 2 landscape 3x4s you'll want a portrait oriented sheet, & if you have 2 portrait 3x4s you'll want a landscape oriented sheet.
I always add in small border because when I send it to my printer, or out to Sam's both almost always cut off the edges, so I add the border to ensure that my photos aren't cut into.
Lastly you click on the create collage button & picasa does all of the work.
To find your collages, if you don't print through Picasa, go to the start menu in windows, click to open your picture folder, then the Picasa folder, & you should be able to find them in there!
I hope this helps you. If you have any questions leave me a comment & I'll try my best to answer it!