Finding all the bluecoins in Mario Sunshine without a guide?

Has anybody here done it? I've been trying reaaaaaaaally hard but searching every nook and cranny in all 8 levels of the same map is tedious as ****. I don't know what Nintendo was thinking. Usually getting 100% completion in a Mario game is fun and rewarding.. I'm not feeling it here.

I 100%ed the game when it came out. Never used guides for anything, or understood why people disliked the blue coins so much.

They're hidden in such random places and it's a chore to find them.. that's why. I mean spraying a random wall with FLUDD? Seriously?

I don't recall that. I'm more of a Mario 64 person so I don't have Sunshine on the mind as well. Can't believe how much I've forgotten of 64. But for Sunshine blue coins isn't it more spraying an X or O, or pictures/objects in the hub world?

Yeah some of them are like that - others are hidden.. and I mean reaaaaally hidden. Like, hidden in places you'd never think to look.

I 100%ed Sunshine as well awhile ago. No guides. Also one 100%ed mario 64 multiple times with no guide(also my favorite mario).