Certain energy efficient products purchased during Memorial Day weekend will now be exempt from sales tax. There are no limits on the number of items purchased during this new sales tax holiday. The products qualifying for the exemption include air conditioners (priced under $6000), clothes washers, ceiling fans, dehumidifiers, dishwashers, light bulbs, programmable thermostats and refrigerators (priced under $2000). The first Energy Star Sales Tax Holiday will be Memorial Day Weekend in May 2008.