Yes, we all make those kinda mistakes when we want to sell something, we just aren't that careful enough nobody's perfect.
I accidentally sold my Cafe Uniform, I loved it so much I accidentally sold it and I was sad. I asked people online if they have a spare, no luck. Now my only hope is to get it my doing part time jobs at the Cafe.
I don't think I've ever done that, fortunately. I remember you trying to buy the Caf? uniform. I don't think you can get it again unless you made another character to do the jobs with (I did that to get another brewster set), or if you never got it from the Caf? in the first place.
I'm pretty sure I accidentally sold my Golden Shovel.
Because I had one in my main town and another in my permanent TTing town, and then I suddenly couldn't find my main town's shovel. Not in my locker, not in my museum, not in my side character's stuff, not lying around anywhere in my town. Only conclusion is that I accidentally sold it. Or someone stole it. But eeehhhhh...
I just imported my other Golden Shovel in from my other town and went on planting bells/saplings.
ive sold a lot of things on purpose, but later regretted it
like
i sold my EN TI R E SLOPPY SET
AND c A R DBO AR D SERI ES
AND ONCE I SO LD MY FREA KIN G
S T RIP ED WE ST UIT
FOR 450 BELLS
I COULDNT GET IT BACK SO I BOUGHT ANOPTHER OME
When I first started the game, I accidentally sold like 3 or 4 pieces of the sloppy set not knowing they were unorderable ><. On a somewhat unrelated note, I didn't sell my one and only perfect pear...I gave it to one of my villagers OTL...At least they liked it :I