I created a 1000-yen savings envelope that can be stored in a 2-ring binder. Each time you put 1000 yen in the envelope, color in a box. Of course, it doesn't have to be every day. When you've colored in all 100 boxes, you'll have saved 100,000 yen. If you pretend you ate out and save that money instead, it adds up in no time (*^^*) Save it by yourself! Save it with your family! You'll have fun deciding what to spend the saved money on. Size: Envelope: Kakukei 8 (Japanese envelope size) 13.4cm x 19.7cm (Excluding the folded part of the envelope) There may be slight variations. Please understand. Perfect for A5 size 2-ring binders!