Welp, part of the Hobonichi cult now, I guess.
This thread definitely helped in pulling the trigger, so thank you Bagels for the great thread! I actually read every post before finally opening the goodies I bought today.
I actually visited their own (newly opened?) store in Omotesando today, called Tobichi 2. I take classes in Shibuya every Thursday and Omotesando was only 1 minute by metro away so I decided to check it out. Buying it directly from them would save me shipping costs anyway

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The store was reaaaallyyyy tiny. So tiny, that I felt kind of uneasy browsing because I continuously felt like the three (!) clerks were all watching my every move

. It was a nice shop though, with a pretty huge selection of covers. It was nice that the covers weren't sealed in their original plastic packaging, but actually displayed in use with a Techo so you could really pick them up and see how they looked and felt in practice.
Though I still haven't played a Mother/Earthbound game yet, I picked the Onett cover as I like how colorful and quirky it is. They had the English planner for sale as well, but I ended up grabbing the Japanese Spring edition so I could use most of the pages. I'm kinda sad I can't fully understand the quotes and the cool informational pages in the back but it might be good practice for my Japanese
Also loved that it came with a free pen! It actually writes pretty decently and I like how it has three colors in one. Will have to pick up some more pens and stationary later -- definitely looking forward to that as Japan has an amazing selection when it comes to cute stationary stuff
Speaking of which, what do you all use to stick or tape things in your techo? I have a few movie tickets and I'm thinking about getting an Instax camera but have no idea how I should go about putting them in my techo without having glue residue everywhere.