I adored this game, it's so calm and the probably the best thing is that there is no timer so you can take your time and arrange everything how you like. The only thing is that I keep getting "underpaid" postage despite following the instructions on the game (and comment that I've seen from someone with the same problem).
Setting that issue aside, it's lovely and I would appreciate it if there was a saving system. (Unless there's already one and I just haven't seen it). <3