3x4 pic tip

so we have this little picture carousel that holds 6 3x4 pictures. as you know, pics these days generally come in 4x6. i used paint on the computer to make a 2 picture collage. you just decrease 2 pictures by 50% horizontally and vertically, then past them together next to each other in paint. then i uploaded that new picture into costco to print. worked out perfectly! it only took over a year to figure out how to get small pictures in there. love solving problems.