When I make my morning peanut butter and jelly toast, I always am careful to spread both the peanut butter and the jelly all the way to the edge of the bread slice. I want every surface of the toast to be covered in both peanut butter and jelly.
I lay the slices on my cutting board after toasting, side by side. Peanut butter goes on one slice (usually the left) and the jelly goes on the other. When both are spread evenly, I put them together.
Then I curse when I take a bite into the sandwich and pb&j spread drips out the far side onto my pant leg.