Fill your pot with water (leave room for the corn!) Add the sugar. Drop in your corn. Bring everything to a boil, making sure the sugar is dissolved in the water. Boil for no longer than 8 minutes. Remove from the water and let it cool enough for handling and eating. Handle it and eat it.
Usually the locksmith will be able to rekey the locks in his service van. Most of the locks will take about 10 minutes to rekey and the locksmith can charge you anywhere from $10 to $30 for each lock rekeyed. Most locksmiths will include a few free keys. The locksmith will also charge you for the travel time to you.
If not your best bet is to replace the locks. If it does, Schlage is one of the most challenging (but fun) locks to rekey. When it comes to getting to the tumblers, they are more difficult than a kwikset/titan. Contact a locksmith and find out how much they would charge to do what you need.