Germicidal compositions with enhanced activity towards killing microbiological spores and vetgetative cells comprising certain quaternary ammonium compounds (QACs), phenolic compounds, monohydric alcohols, hydrogen peroxide, iodine, triclocarban, triclosan or combinations thereof with one or more spore coat opening agents. The invention also provides for the application of the germicidal compositions to animate and inanimate surfaces to help kill germs and protect against the risk of infection from bacteria, molds, yeasts, fungi, viruses, and microbiological spores.