Ah, I'm so envious of you all!! I adore Amazing Grace. However, I am still getting through last year's tsv. (I have a large toiletry stash!!) Maybe I will be on my last dregs in time for next year! I often use the perfume and/or body spray as an air freshener in the spare room and bathroom when we have guests!
I do this also, I have an emply spray perfume bottle and fill half with the body spray and half water. I spray the beds, airing cupboard and wardrobes. The bottle the body spray came in is naff and only works now and again so gave up using it as a body spray.