Read this tip to make your life smarter, better, faster and wiser. LifeTips is the place to go when you need to know about Drainage and Soil Improvement and other Lawn topics.
If you can't use sprinklers (for whatever reason), use a soaker hose. A soaker hose is a section of specially constructed hose with small holes throughout the length. The end of the hose is closed off, forcing all of the water through the holes. The amount of water that these things can put out in a short period of time is amazing. They're great for small lawns and lawns planted in sandy soils where the water percolates in rapidly.