|I keep a 3/4 inch diameter wooden dowel by my ironing board to help in pressing seams open. The first seam of the leg on pants is easy to press open, but the second seam, that closes the leg, is the one to use the dowel. Just slip the dowel into the leg, line up the seam, and press on top of the dowel. Also children's sleeve seams, or anything too small to press easily, without adding unwanted creases.
This dowel is also good for pressing any seam open that the edge of the fabric could leave an impression on the right side of the fabric. Since the dowel is round, your iron never pushes down on the fabric edges of the seam.
Very inexpensive tool that works great. I bought mine at Walmart. I originally thought I'd cover it with batting and cotton fabric to pad it a little, but found that wasn't necessary.