we receive several emails from the same place - a product supplier for instance -  and we have several of our clients (to whom we have supplied that product) that we would receive emails for or about - would be so handy if we could attach that received email directly to the client without having to have  an open deal as we have on-going relationships with our clients - we would receive several emails from the supplier regarding several different clients so we cannot simply assign that incoming email to one client

it would also be handy to be able to attach documents directly to tasks and notes - much like with emails