If you have to take your toddler to a restaurant, the store, the post office, or one of the many other places you go, give him the opportunity to run, climb, jump, and use his muscles before you go. Let him run around the yard, or stop at the playground on the way. If he burns off some energy first, he may not be such a handful when you're out doing the things you need to do.
Teach your child self-control by looking for ways to catch him being good. Use positive reinforcement to help your child know how you'd like him to behave.
For example, every time your child is helpful or behaves well, reward him right away for his good behavior. A simple smile and a little praise go a long way.
Try involving your child, too. When you're grocery shopping, wheel him close to the shelves and ask him to get something down for you, or hold a bag for him while he puts apples in it. This gives him something constructive to do and makes him feel like he's helping.
As part of a long-term plan, consider enrolling your toddler in a fun activity – such as swimming, gymnastics, or dance – to help him channel even more of his energy in a positive way.