A method for using a reflective target system, said method comprising: (a) providing a reflective target system comprising: a reflective target apparatus having: (i) a planar surface having a perimeter (16, 18, 24, 26) that extends around said planar surface, said perimeter separating a front area from a rear area of said reflective target, said front area including a translucent portion; and (ii) at least one arm (20, 22) that extends from reflective target apparatus; and an exterior device comprising a laser plumb line pointer, which is self-leveling and includes at least one light emitter that emits a first laser beam pointing in a substantially vertical direction, such that said first laser beam strikes said translucent portion and creates a first spot of visible light at a predetermined position on said translucent portion; wherein the at least one arm is for attaching and holding said reflective target to the exterior device; characterised by the steps of: (b) aiming at least two visible light lines (106, 126) from different angles at said front area of the planar surface, when in use, said planar surface being oriented at an angle other than vertical, said front area acting as a gross target, said front area having a surface that is substantially reflective so that when said at least two visible light lines strike said front area, an amount of light of said at least two visible light lines that is reflected by said front area surface is visibly greater than an amount of light of said at least two visible light lines that is reflected by a jobsite surface (110, 130); and (c) further aiming said at least two visible light lines from different angles at said translucent portion, said translucent portion acting as a fine target for said at least two visible light lines, thereby allowing a user to visually determine if said at least two visible light lines are striking said front area at correct aiming angles when crossing over said translucent portion. (a) providing a reflective target system comprising: a reflective target apparatus having: (i) a planar surface having a perimeter (16, 18, 24, 26) that extends around said planar surface, said perimeter separating a front area from a rear area of said reflective target, said front area including a translucent portion; and (ii) at least one arm (20, 22) that extends from reflective target apparatus; and an exterior device comprising a laser plumb line pointer, which is self-leveling and includes at least one light emitter that emits a first laser beam pointing in a substantially vertical direction, such that said first laser beam strikes said translucent portion and creates a first spot of visible light at a predetermined position on said translucent portion; wherein the at least one arm is for attaching and holding said reflective target to the exterior device; a reflective target apparatus having: (i) a planar surface having a perimeter (16, 18, 24, 26) that extends around said planar surface, said perimeter separating a front area from a rear area of said reflective target, said front area including a translucent portion; and (ii) at least one arm (20, 22) that extends from reflective target apparatus; and (i) a planar surface having a perimeter (16, 18, 24, 26) that extends around said planar surface, said perimeter separating a front area from a rear area of said reflective target, said front area including a translucent portion; and (ii) at least one arm (20, 22) that extends from reflective target apparatus; and an exterior device comprising a laser plumb line pointer, which is self-leveling and includes at least one light emitter that emits a first laser beam pointing in a substantially vertical direction, such that said first laser beam strikes said translucent portion and creates a first spot of visible light at a predetermined position on said translucent portion; wherein the at least one arm is for attaching and holding said reflective target to the exterior device; (b) aiming at least two visible light lines (106, 126) from different angles at said front area of the planar surface, when in use, said planar surface being oriented at an angle other than vertical, said front area acting as a gross target, said front area having a surface that is substantially reflective so that when said at least two visible light lines strike said front area, an amount of light of said at least two visible light lines that is reflected by said front area surface is visibly greater than an amount of light of said at least two visible light lines that is reflected by a jobsite surface (110, 130); and (c) further aiming said at least two visible light lines from different angles at said translucent portion, said translucent portion acting as a fine target for said at least two visible light lines, thereby allowing a user to visually determine if said at least two visible light lines are striking said front area at correct aiming angles when crossing over said translucent portion.