Okay, this sounds really dippy & it looks even goofier, but here's one thing you can do...
Find a empty 35mm slide mount. Attach a piece of string to it (glue, through a hole- whatever). Now set your camera up on a tripod or something else solid so you can look through the viewfinder (or lcd).
Now, hold the string between thumb and fingers of one hand and the slide mount in the other. Move the slide mount closer or farther away from your eye until what you see through the hole in the slide mount is close to what you see in the camera viewfinder.
Mark the string with a marker, or a tape flag or something. Now you can walk around like a regular pro-photographer-in-training with your "framing aid" and look at the world. If it looks good in the aid, it'll probably look good in the camera. Assuming proper focus, exposure, etc.
Do it every day. after awhile it becomes second nature and you can do it without the aid. The nice part is it taks up almost no space and you can slip it into your pocket and cary it all the time.
You can make a mark on the string for different lenses (or zoom settings) to make it multi-functional.
Try it, you'll like it! Just don't look at yourself in the mirror while doing it. You die laughing and not get any pictures taken.
