Peptides are versatile molecules which found great applications in various field of chemistry. Peptide-based drugs, peptide materials, delivery systems, enzyme mimics are only few of their area of practice. There is also a significant amount of marketed peptide drugs which make them also quite valuable for industrial-size applications. In our research group, we use peptides as a Swiss army knife. We synthesized various types of peptides for semi-conducting hydrogels, drug delivery systems, peptide-based drugs, biosensors, cell adhesion systems, etc. In this talk, a summary of our peptide work will be presented. Fullerenzyme, as a new enzyme mimic structure, will also be introduced as a part of our most recent work.