A sheet post-process apparatus includes a waiting tray and a processing tray. The pillar has an enlarged first portion to contact the disc when the disc is at the temporary position and a constricted second portion to space apart from the disc when the disc is at the reading position. The service provider monetizes the experience by charging the experience provider andor the participants for services. In a second step, the web is severed with a single laser pulse directed onto it, thereby completing the cut line. There is further disclosed a use for guanylhydrazone-substituted compounds to treat diseases and disorders related to T cell activation and HIV-infection. The first clip member has a guide enabling the second clip member coupled to the first clip member to be moved in a longitudinal direction of the strap.