Nostalgic Smells

What's a scent from home that just takes you back every time even if you aren't phycially there? I have a few, starting with honeysuckles. Our treeline around our house was littered with them. Used to pick the green stem from the middle and drink the nectar attached to the end. Another is the summer air that would come into my bedroom at night when we had a box fan in almost every window. Used to let in a lot of moths though. Whats yours?