If your carpet is worn, dirty, outdated, or an unusual color, you may need to seriously consider replacing it. Many houses do not sell because of this problem. Don't think that buyers have more money than you have to replace carpet. They simply buy elsewhere. Your front yard immediately reflects the inside condition of your house to the buyer.
People enjoy their yards.
Make certain that the trees are trimmed so the house can be seen from the street. Have the grass mowed, trimmed and edged. Walkways should be swept. Clean away debris. Remove parked cars.