A couple of years ago when I was trying to learn all that exposure nonsense I kept believing that there had to be an easier way...well bucko, there is and it's called live view. Chimp your image in LV with your RGB histogram showing>input 2 of the 3 wanted/needed camera settings and push that histogram toward the right, but not touching the right side, using the third setting. Oh, because that histogram is jpeg based, you must first neutralize, base out, all of your "picture style" settings that you may have set for your jpeg images.
I use this technique all the time and I take the time to repeat if the light changes. Also, when I'm shooting a black dog/white snow scenario, I'll shoot a properly exposed virgin image of the snow followed by properly exposed dog romping around and blend them later in PS.
Yeah, it's sounds complicated, but rapidly becomes second nature.