Is storing items still an issue?

So I started Skyrim just a while ago, 5 days, after getting into gaming itself just 3 months prior. That aside, I killed 4 dragons already and I'm still carrying their scales and bones with me because I'm afraid to store them anywhere cuz I read many, several years old posts warning of the despawning items due to the game resetting every once in a while. But I was wondering, what if I stored them in Delphine's chest down in the secret room? I don't think Delphine's would let thieves enter there the only problem is the reset.