|I found exactly 42/50 stamps on my high playthrough... right now I'm just doing the last bit of stamp cleanup, fishing, and cave of shadows and rollgoal while listening to podcasts. Also I went and got that fishing hole bottle (is hinted at by the sign and some duck NPCs in the fishing hole), and the 3rd bomb bag in Zora's domain (why did I never think of using water bombs on that weird rock with eyes)|
The last stamp you get is a reward for getting all the other stamps... the remaining 7 I needed, they were mostly pretty easy to find. some were in dungeons 2 and 3 which I forgot to clear out, 1 was from Jovani's cat after you talk to Jovani in the bar. The Wolf Link stamp is the only one that would've had me completely stumped, it's in this one grotto hidden away in a random corner in Faron Hyrule Field... it doesn't look suspicious at all until you go up close to it and see that the grass there forms a little circle. I don't know if I'd have ever found that one on my own, unless i was just so bored I just decided to go around trying to cut every piece of grass in every field area.
Also I went and caught every kind of fish. I used a guide to find the Hylian Pike, which you can get in the fishing hole if you're lucky, but it's easier to get in the grotto south of Castle Town. Another fish I found in a grotto is probably available in the fishing hole as well.
And with that, I'm just about 100% done, all I need to do now is the Cave of Shadows to get the max wallet, and rollgoal to max out my wallet and then the file is 100% complete.
now at about 62 hours...