Five ways to Capture Candid Holiday Moments

Ofoto.com: "To get quality prints in a variety of sizes, Ofoto recommends your photos have at least the following minimum resolutions:
Wallet-size prints - 320 x 240 pixels minimum (actual image size: 2 x 3')
4 x 6' print - 640 x 480 pixels
5 x 7' print - 1024 x 768 pixels
8 x 10' print - 1536 x 1024 pixels
16 x 20' print - 1600 x 1200 pixels
20 x 30' print - 1600 x 1200 pixels "