The best way to avoid excess paint is to calculate how much is needed before you start your project. Visit one of the websites below:

Buy latex paint. It is easily applied and can be cleaned with soap and water.

Use it up. If you can't use the excess paint, give it to friends, relatives, theatrical groups, recreation departments and community service organizations. Give away only paint that is good quality in its original container with the label intact.

Save paint for future use. It will last for years if sealed tightly and stored where it will not freeze.

If paint is dry, it can be disposed of in your regular trash. The lid must be removed so that the hauler can see it is dry.

If the paint is wet follow these directions:
For quantities greater than 1 inch left in the container.
1) Find a well-ventilated area that is protected from children and pets.
2) Add cat litter or sawdust to absorb the paint.
3) Every couple of days, stir the mixture to allow air to flow through. Depending on the type and quantity of paint you have, the drying process can be lengthy and may take from several days to several weeks.
4) When completely dry, discard with regular trash (put in box or bag).
5) Leave the lids off so the trash company can see that the paint is hardened.

For small quantities less than 1 inch left in the container.
1) Find a well-ventilated area that is protected from children and pets.
2) Remove the lid and allow the liquids to evaporate (make sure there is proper ventilation). Do not smoke near cans and avoid contact with the liquid or inhaling vapors.
3) When completely dry, discard with regular trash (put in box or bag).
4) Leave the lids off so the trash company can see that the paint is hardened.

NOTE: Small quantities of paint and aerosol sprays can be painted on cardboard or newspaper to use up. You can then dispose of the cardboard or newspaper in your regular trash.