Sometimes it is just to hard to visualize something in my head, especially when there is so much else going on in there. Photoshop is definitely a great tool to help with this and make decisions. I've shown a
few examples on this blog at how I use it. Right now it's coming in handy with rug colors. Do we go off-white, dark gray, black or brown? We are moving our couch over soon and putting a new gray cover on it. It will be a couple shades lighter than the chair - kind of like the mid tone of the blanket. Is that too much gray? I do like the darker shades. Dark for a floor is my preference. We have a
light blue carpet in our current home and it shows all the fuzz of 2 cats.