When it comes to printing your photos, think about what you'll do with them. Will they go in the album or are you thinking about hanging them on the wall? Many times, I have made the mistake to order a print that I thought would look great on the wall only to realize that they look tiny once I've put them up. The following neat comparison visualizes how different sized prints look when they are placed on a wall.
So, an 8 by 10 might sound like a pretty decent sized print size, but it depends on how you want to use it. Several 8 by 10s placed on a wall would make for a great photo wall, but if you'd like one image to really stand out, you might want to consider choosing a larger print size. A few months ago I've ordered a gallery wrap, and initially I almost felt guilty for spending the extra money on the larger size, but now that the gallery wrap is hanging on the wall and I get to look at it every day, I'm glad I got it. You can check out the gallery wrap here http://sabinereed.zenfolio.com/blog/2012/8/prints.