Neutron scattering is a key experimental technique in the study of the atomic structure and dynamics of liquids and glasses. The intensity gains provided by ESS together with the ever-increasing power of computers will enable a visualization of “where the atoms are and what the atoms do”. Neutrons at ESS will be used as the central part of studies using multiple complementary techniques, e.g. X-rays, light scattering and NMR, each providing information on specific aspects of the structure or dynamics of complex disordered materials. The data obtained will be simultaneously analysed with sophisticated modelling techniques or used as a stringent test of computer simulations. Such a coherent approach will not only enable a radical step forward in our understanding of the basic physical processes in disordered materials, but also in our ability to understand, control and eventually exploit the atomic scale structure and dynamics for the production of materials with optimised properties for technological and other applications. A future trend in experimental terms will be the need to measure over a wider Q range for structural studies, combining SANS and diffraction (e.g. for liquids in porous media), or a wider (Q,w) range for dynamics using a series of measurements from spin-echo to high energy chopper (e.g. for studies of the glass transition).