I am a big fan of grouping smaller pieces of art into interesting displays on your walls. I have one such display in my house with old family photos that I lined up the stairs that I talked about here.
There are so many cool ideas out there and it takes very little effort (and funds oftentimes) to come up with arrangements that make big impacts in your space. You can use this trick to cover a big expanse of space or to jazz up a nook or cranny. You don't also have to limit yourself to pictures - mirrors or other hanging objects can give the same effect. Check it out.
first two images seen on CoolPhotoIdeas.com
Image from Covetable Designs
Two Images from Design Hole Online
Image from Finding Fabulous
Image from Get Taste Blog
Image from Live Like You
Image from Manolo Home
Image from Niche Interiors
Image from Real Simple - goes to show that you don't even have to put pictures in those frames!
Image from Traditions Journal
Image from Under a Paper Moon