Sometimes assembling them helps thinking or just keeps you entertained, but in a couple of days you get tired of all the mess on your table and don't want to assemble anymore.
I've been solving jigsaws for some 15 years and now it takes 1 to 2 weekends to complete the entire one( I prefer doing 1500-, 2000- or 3000-piece puzzles). Here's a fast way ( Read more... )