I’m pretty sure some of my T-shirts could win this if we don’t take this whole “daily” I aspect too seriously. There are a few from my teenage years that are still in good shape and still fit, which I’ve had for literally more than half my life by now.
That “daily”-aspect makes it really hard though, since there are days when I don’t even need my house keys. Lighbulbs die after some time, so they ain’t it either. And would wardrobes count as “items”? I tried thinking about this question so hard for way longer than I probably should’ve now, and got to no unanimous conclusion so far. But in the end, it doesn’t even matter, so I’ll just go with: probably my glasses