Donations are tax deductible and, says Barbara Weltman, editor of J.K. Lasser's Your Income Tax 2009, "charitable organizations are really hurting this year." So you can do something good for the world and shave your tax bill at the same time. If your finances are temporarily tight, make a donation by credit card. You can take the deduction this year even though you make the payment next year. If you're not sure where to contribute, consider making a gift this year to a donor advised fund like those available at Fidelity, Vanguard and other big fund companies. You get an immediate tax deduction and can let the money grow for as long as you like before finally giving it away.