When　portability,　low　cost,　and　green　energy　requirements　are　considered,　the　search　for　an　electricity　generator　harvesting　environmental　energy　based　on　available　cheap　commercial　materials　and　simple　fabrication　techniques　becomes　significantly　important.　In　this　study,　the　capability　of　ultrasoft　and　cuttable　paper-based　triboelectric　nanogenerator　(P-TENG)　to　harvest　mechanical　energy　is　demonstrated.　The　P-TENG　maintains　the　excellent　softness　of　tissue　paper　and　has　the　characteristics　of　light　weight　(~　87　g/m2),　high　electric　conductivity　(6　Ω/square),　and　low　cost　(~　$3.00/m2).　More　importantly,　the　P-TENG　can　be　cut　by　the　end-user　to　modify　its　size　and　shape　and　still　function　properly.　The　mechanical　energies　available　during　cleaning　processes,　the　energy　associated　with　the　body＇s　motion,　sound　energy,　and　wind　energy　can　be　directly　harvested　by　using　the　P-TENG.　The　high　portability　of　the　P-TENG,　the　simple　and　scalable　fabrication　processes,　low　cost,　and　its　ability　to　harvest　mechanical　energy　make　the　P-TENG　important　for　the　development　of　green,　portable,　energy-harvesting　devices.　©　2017　Elsevier　Ltd