OK, the post-its are notes "on" my laptop. Now the information in it consist of everything I have ever done. All service call records are organized in Excell and Access files and can be quickly pulled up. A scanned copy of every Service Invoice is available with detailed discription plus and "For the record" remarks I added afterwards. I use a jumpdrive for information that is updated so I want have to remove or link it ot my desktop PC.
Other available information that is stored includes phone book, mannuals, technical notes, and a electronic mapping program which I can use "push-pins" to mark places of calls. This small tool replaces 2 milk crates of references plus saves 10x that much space of information that I would not normally have on board.