My favorite smell is definitely lilacs.
I never thought much of lilacs before my 18th birthday. That year, however, my now-husband Brett gave me my first birthday present from him: a bouquet of lilacs from his mom's lilac bush, the bush that still grows right outside his childhood bedroom window.
No guy had never given me flowers before. I was so touched; they were so delicate and beautiful and they smlled so incredible. We had only had our first date five days before, so it was the perfect gift -- sweet, and sentimental, without going overboard.
Lilacs have since become a symbol of that time in our relationship: every time the lilacs bloom I am reminded of that season of our relationship, when everything was new.
I wanted to use them in our wedding, but unfortunately, they were neither in season nor practical: apparently they do not survive long out of water, and besides that, they are extremely expensive. I compromised and had freesia, roses, and hydrangeas instead -- the freesia smelled lovely, somewhat similar to lilacs, the roses were beautiful and full and creamy, and the hydrangeas were kind of lilac-like...purpley-blue, with lots of little flowers.
I simply can't smell lilacs and stay in a bad mood. As crazy and weird as this sounds, I swear I can feel my brain firing better after I smell them. It's like all the bad stuff is flushed out and replaced with the delicate scent of lilacs.
Someday, when we have a house, I hope we can plant lilac bushes all over our yard, so that in the spring, I can smell them for as long as possible.