To help keep the pail clean, you'll want to wash it down with a nonabrasive cleaner each time you empty it. Use bleach occasionally to give it a deep clean and prevent odors from developing. You may also decide to put baking soda into the bottom of the pail to help absorb the smell.
Be sure to read the use and care directions that come with your diaper pail to find out exactly how your pail should be maintained.
If you plan to change your child in more than one room of your house (for instance, in your family room and in his nursery), you may want to invest in two diaper pails so you always have one handy.
Some brands of diaper pails can be used for either cloth diapers or disposable diapers, while others are used for one type only. If you're using cloth, you may want to buy and use a cloth liner that can be easily removed and carried right to the laundry room. If you've chosen a diaper pail that uses a special type of liner, stock up on refills so you're never caught without one.
Even the best diaper pails may eventually develop that unmistakable odor, so placing a deodorizer near or inside the pail can help counteract that.