I often hear works-salvationists try to "get around" Ephesians 2:8,9 by interpreting it as such, "saved by grace through faith 'infused' or 'conjoined' with works and not merely specific works of the law." In other words, saved by "these" works (good works) and just not "those" works (specific works of the law) but that is not what Paul is teaching.
Also, Mormons have a "different" gospel of works salvation that is not in harmony with "saved by grace through faith, not works." Instead, they teach in 2 Nephi 25:23 (from the Book of Mormon) - "For we labor diligently to write, to persuade our children, and also our brethren, to believe in Christ, and to be reconciled to God; for we know that it is by grace that we are saved, after all WE can DO. In other words, do all you can or else the Lord will not be able to save you - "salvation by works."
and Jesus said; "I tell you the truth, my father and I are always working.