I wasn't impressed with Messe de Minuit in the summer heat, I'm anticipating fall to wear it again. Also, I find myself not enjoying my formerly beloved Vanille Canelle as much as I used to; hopefully fall will pull me out of my slump.

YSL Opium
SL Chergui
Vintage YSL Rive Gauche
Vintage Miss Dior
Guerlain Mitsouko
Guerlain Habit Rouge
Lyra (Alain Delon)
Teatro Alla Scala
Agent Provocateur
Estee Lauder Estee

The LLP versions of Chaos and L'Interdit
Theorema
Original Shiseido Zen

1000
Nu
Biche dAbs
Femme
Bellodgia

and lots of samples (test drives)

Test driving Chene right now. It's very autumnal. The low hum of sweetish, woody moulder.

Biche Dans L'absinthe is discontinued, isn't it? I hope you have a nice big store of this to last you through the season

I don't put them away in summer but i wear them more often in the colder months:

Hypnotic Poison
Midnight Poison
Addict
Opium
Magie Noire
Femme
Kingdom
Le Classique EdP
Obsession
Aromatics Elixir

Safran Troublant
Bois Farine
Mure et Musc
Wild Fig and Cassis
Nutmeg and Ginger
Blue Agava and Cacao
Chanel No. 19 edt (for the leather note)
Chanel No. 5
Farnesiana
Iris 39

In no particular order:

Bois des Iles
Un Bois Vanille
Bois d'Armenie
Sensuous
Incense Rosé
L'Air du desert marocain
Vanilia
La Coupe d'Or
Cadjmere
Attrape-Coeur

Autumn is my absolute favorite season.

And Rochas Femme is my no. 1 autumn scent. I revel in wearing it in autumn. It's me, more than anything else.

Others:

L'Autre
Bandit EDT

But mostly... Femme!

Hmmmm, oh so many:

Frapin 1270
Theorema
Teatro alla Scalla
Le Baiser du Dragon EDP and parfum
Black Cashmere
Hot Couture Black
Dolce and Gabbana Red Classic
Organza Indecence
Miss Dior

just to name a few....

It is warm here most of the year, but there are a couple I only seem to like in cooler weather:

Tom Ford Black Orchid (unlike the Voile de Fleur, which is seasonless to me)
Youth Dew (wear it only in cool weather, though I often open up the bottle just to sniff all year round)
Black Cashmere

Most of my day to day scent choices are musks, which are seasonless to me. I also like patchouli scents, even in the summer, maybe because they are somehow "green".