Learn how to work the half double crochet!
The half double crochet is between the single crochet and double crochet regarding to height. Instead of working off the loops two by two, like in the double crochet, you work off all three loops at once. The half double crochet creates a tight fabric, similar to the single crochet, but because it is taller it works up quicker!
Its abbreviation is hdc.