Concentree is one of my summer scents, and if applied liberally, can last quite some time, on one occasion it was even there the next day. I would have expected Happy to last longer, though, because it's not a orange-heavy as Concentree. I haven't made that comparison myself yet, because I don't really like Happy. Citrus notes are rather fleeting. Try again using more? It really is a warm weather fragrance, so it doesn't make that much sense to try it in colder environments.