My main binoculars are Nikon Prostaff 8x42 and 10x42, depending on the situation. But I have several pair that I like to keep handy. I keep a pair in the car at all times in case I see something. I keep a pair of old Nikon Nature 7x35 by the back patio door, and 10x42 on the window of an upstairs window that has a good view of a lot of trees and stuff where I often spot birds. I've been thinking about upgrading to Nikon Monarchs for serious birding ventures. I don't mess with a lot of other brands, and many are excellent, because Nikons focus in different directions that most others (which do it the wrong way, of course).
I also keep a cheap pair of compact 8x32 in my gator for when I'm out on the property and have something to grab if I see things out there. My last pair was broken by some relative kids that went joy riding in the gator and somehow destroyed the binoculars. So I just bought a pair of Eyeskey 8x32 from Amazon for $50 to replace them and they seem really good for the money, very well built and nice and clear.