Can I Sow Vegetable Seeds that were Harvested Last Year?

Save money by sowing seeds collected collected last season

The answer to this question is Yes providing you remember the following:

Seeds must be allowed to ripen properly on the parent plant prior to harvesting.
Clean seed thoroughly prior to storage, discard any seeds that do not look perfectly healthy.
Store in an old envelope, do not store in a plastic container as the seed will sweat.
Remember that when you sow the seed you may not get the same plant as a result, you may get an interesting cross!