If counted cross stitch isn't your thing, I'd also highly recommend EPP. I did a tumbling block quilt for my niece this way. Extremely portable. I made my templates from old file folders as they were sturdy and no cost. It was a baby quilt at the time so not too large to lug around. But you could make up 'kits' with several 'rows' worth of fabric and a baggie full of templates and go to town. It's really easy. I love handwork of all types because it is so theraputic for me.