Look at Models from Different Views

If you work in an environment modeling and animating by using just one 3D View, you should definitely make it a point to periodically orbit around your scene and look at it from a bunch of different angles. Double-checking is particularly important when modeling because it's very easy to get a model that looks perfect from the front, but really distorted and goofy-shaped from one side.

Split off another 3D View if you need it or use the numeric keypad hotkeys to quickly do spot-checks from different angles. If you're coming from a background in 3DStudio Max or CAD applications, you may want to use the Quad View in the 3D window to see multiple views at the same time by going to ViewToggle Quad View or using the Ctrl+Alt+Q hotkey.