Sales support tool (2001) Sales support tool (2001) from Jonas Löwgren Sales support tool (2001) Concept and interface design for a store-planning sales support tool. The client was Elfa.Project management by Effect Advertising, design support by Ola Stålebrink of Avia.Category: Productivity tools. gLike Sales support tool (2001) Concept and interface design for a store-planning sales support tool. The client was Elfa.Project management by Effect Advertising, design support by Ola Stålebrink of Avia.Category: Productivity tools. Interaction Design Share R 7 n Jonas Löwgren Professor Eksjö, Sweden Follow Contact