I'm one that loves pictures! However to many can overwhelm a space so you need to be careful on how much you have in a room as well as the placement. Time goes by so fast and in many situations replacing them with updated ones just takes to much effort. In other situations their certain moments that you don't want to let go of. Those are the pictures you should keep and share with others! So go through your room and be selective. Pick the ones that give you that certain "feel". Then make it your focal point by creating an art piece. One material that always gravitates attention is stretched canvas. Their are so many styles you can create on canvas... super old school, black and white, color, sepia, etc. You can go through a professional photographer who should tell you what color and size you should order since it's pricey or you can order yourself at a significantly lower price at places like Costco. If you decide to save the money and order yourself don't be shy on the size. Take a stroll to a local gallery and observe the crowds, you'll notice they gravitate to the big pieces. Treat your space/wall as it's your personal gallery. Still stuck? Choose a wall that doesn't get much traffic (no one will brush up against or bump into) but everyone can see when in the room. Measure your wall, then measure a size that would take up a good portion of the wall. Create a sample using paper and tape it to the wall (with painters tape so you don't ruin your paint). If it's to big make two smaller sample sizes and tape to the wall. Keep breaking it down until your comfortable. Then order!
Once you limit your photos and treat the "special moments" as a work of art, they'll get the attention they deserve. It'll balance out your space and give it a "gallery" feel. Good luck! Any questions? Feel free to ask!