Listy, I was going to suggest Dolce & Gabbana's Light Blue, but (to me at least) it has a grapefruity scent when first applied which you may not like. The top notes are Granny Smith apple, Sicilian cedar and Bluebells; middle notes are jasmine, white rose, and bamboo; base notes are cedarwood, amber, and musks.
This scent has real lasting power, and only a light application is needed. I'm not currently wearing this, but when I did I used up an entire bottle as well as a couple of the shower gels and the body gel.
As a side note on this fragrance, there is an inexpensive ($9.99) dupe of it made by Perfect Scents (available at CVS and probably other drug stores). Reviewers at MUA swear that the PS version smells and lasts exactly like the real thing. I haven't tried it but will check it out next time I'm at CVS
Milla, sending you wishes for sunshine, but there's no place I'd rather be when it's overcast and damp than England!