My most prominent ones are:
The delicious smell of the bottle of Coppertone that Mum used to plaster us in for our annual holiday at one of the many Pontin's sites. Does anyone else remember Coppertone?
I also have really vivid memories of the smell of the turkey cooking at the crack of dawn on Christmas Day, right after we opened our presents, and being excited for the arrival of various family members. Am I imagining it, or does the aroma of turkey cooking these days not seem as strong as I remember?
Mum's perfumes - for best, she wore Estee Lauder's Youth Dew or White Linen (although she always called it Dirty Sheets). For everyday, it was Coty L'Aimant. My first bottle of perfume was Smitty...I felt so grown up!
Those smells...treasured memories.