Phillips engages in other projects that challenge the viewer's perceptions of art, such as his ongoing project "20 Sites n Years", in which he photographs the same 20 spots in his studio's neighborhood, once a year. As the years go by, the viewer watches the neighbourhood gradually change. Similarly, Phillips has done a series of paintings called "Terminal Greys", consisting of simple cross-hatched bars of murky, grayish paint composed from the leftovers on his palette at the end of each work day. Since there are no aesthetic judgments on the artist's part in the creation of these works, they are virtually mechanical; the "art" could be said to lie in the conception of the work and not in the accidental "grey rainbow" appearance of the result.