Mastering with Cubase 7.0.7

But if you do that make sure to play your results in a variety of different environments (several different friends stereos, cars, portable players, etc.) to double check how it sounds. A good set of flat over-ear headphones (not buds) is a good investment. Most headphones are not flat. They are designed to make the music sound "better’ with say more low end. You don’t want that. A flat response curve allows you to accurately hear the material and honestly assess how it sounds.

Also I highly recommend pulling together a set of reference tracks on your DAW. These would be commercial recordings of songs in different styles (hip-hop, pop, folk, whatever you typically record) which you think are good examples of how that style should sound. Then while working, especially mixing, listen to the appropriate reference track(s) and compare it to your own work. Does the reference track have more (or less) bottom end than yours? How does the reverb compare? Mix levels between different musical components (e.g. vocals vs. guitars)? The goal being to make the 2 tracks sound similar when A/B-ing between them. Doing this will help mitigate some of distortions caused by your room.