Heinrichs, FelixSchreiber, DanielMühlhäuser, MaxSchroeder, Ulrik2017-11-222017-11-222010978-3832525781https://dl.gi.de/handle/20.500.12116/7363Pen-and-Paper interaction (PPI) has recently gained attention as a form of tangible interaction, where normal paper is used in combination with a digtial pen to allow interaction with computer systems. However, research regarding the application domains of PPI has yet been focussed on knowledge work, despite the highly mobile and casual nature of paper. We argue, that the overlooked domain of mundane or everyday tasks requires additional attention and adds special requirements to supporting technologies and infrastructures. This is grounded on a case study in the domain of shopping planning supportenText/Conference Paper