The Magnus Archives Roleplaying Game Character Portfolio does the job of a standard character sheet and so much more. At 24 pages, it records all your character's pools, abilities, skills, artefacts, and everything else you find on a regular character sheet. But it also gives you room for notes, sketches, character arcs, and details about those abilities. Jot down thoughts about your character's appearance and mannerisms. There's plenty of room for details about connections to the other PCs in your team along with people, creatures, objects, and locations you meet in your adventures. Keep a campaign journal, or make maps and sketches of places you've been.
The print version comes in a pack of five-enough for the whole party.