To help me along with my spatial difficulties, I design my knit motifs using a standard spreadsheet program, which is a difficult enough concept for me. Here, above, is one repeat of my stylized flower motif copied from the spreadsheet. You can see it below in two different-colored sweaters.
Without breaking down the design into a single repeat, I would never have cast on the right number of stitches (multiple of four). Without the diagram attached to a clipboard right in front of me, I could never have gotten the right colored stitches in the right places. With the diagram, I had a lot of fun knitting with two colors at once.
Unfortunately, my design also contained some rows with three colors, which necessitated picking up and dropping the third color while concentrating mightily. Still fun, though.