Using a steam iron can cut ironing time in half or more. The more steam your iron produces, the more layers of fabric it can iron at once, which means you won't have to go through the same pant leg over and over again.
There are a few different things to consider when picking out an iron, but one of the most important things to consider is steam. If it doesn't produce enough steam, ironing can't be done.
Irons with more steam will work very short on even the toughest creases, so not only will you not need to tumble over the same area multiple times, but it may be perfect after a quick break-in.