When we first purchased our home, that deduction for charitable giving was a pleasant surprise at tax time. But considering why we give - and when we give - I can't imagine that making much of a difference in our giving habits. We give to support our congregation, to support ministries that are important and don't have a broad appeal. Hopefully, we aren't out-of-the-ordinary. In our congregation, we do struggle with income - but I don't think our household 'out-gives' other members. (Luckily, we don't know - and I'm very glad.) I would think this would have more impact on giving outside of the Church.