ok generating singlet oxygen from 30% hydrogen peroxide is a thing but damn you just know there's more convenient ways
(for _chemical_ generation, that is. there's always the photochemical approach using a photosensitizing dye like rose bengal to turn triplet oxygen into singlet, but I'm talking about an approach that will work in the dark, haha)
what I'd really like is a way to use peroxymonosulfate or peroxydisulfate to generate singlet oxygen, cos these are stable salts