I think there was a topic like this at one point, but I can't find it. So I'm guessing a lot of us collect other things besides video games and related things. Post them here!
------------------------------------------------------------------------------------------------------
I may have mentioned before that I am a Star Wars fan.

(if the avatar wasn't obvious). I have a pretty large modern figure collection. Modern, by the way, has different meanings to different people, but generally it means figures from 1995 to now. I got some here and there ever since the Power of the Force 2 line, but I really started collecting them starting around 2000 when Episode I figures were on clearance and Power of the Jedi was the new line. I do also have some vintage figures, which I'll post another time.
I collect loose figures from all movies and Expanded Universe sources. My general rule of thumb is I'm looking for the best version of each character's certain appearance (ex.: best version of Luke Skywalker in Snowspeeder Gear). So I don't collect all the different iterations of the same figure, with the one exception being that I collect all figures of Darth Sidious/Emperor Palpatine (there aren't many).
I decided to take pictures of my collection to catalog what I have and what I plan to upgrade for my own purposes, but I thought I'd share them here. So I'll start with my collection of modern
Star Wars Episode V: The Empire Strikes Back figures, since that movie is most people's favorite. I store a lot of the accessories elsewhere and need to sort them someday. In all categories I'm missing some figures that I'll eventually track down, or Hasbro hasn't made yet. Also, many Droids and Stormtroopers are grouped together separately.
Battle of HothL to R: Luke Skywalker (Snowspeeder), Wes Janson, Zev Senesca, Kesin Ommis, Dak Ralter, General Reeikan, Major Bren Derlin, General McQuarrie, Hoth Rebel Troopers, Chewbacca (Millennium Falcon), Han Solo (Echo Base), Han Solo (Hoth Gear), Luke Skywalker (Hoth Gear), Han Solo (Hoth Gear, hood up)
DagobahL to R: Luke (Dagobah Landing), Yoda, Obi-Wan (Spirit), Luke (Training), Darth Vader (Vision)
Bounty Hunters and ImperialsL to R: Boba Fett, Bossk, IG-88, Zuckuss, 4-LOM, Dengar, General Veers, Captain Needa, AT-AT Commander, Emperor Palpatine (original actor)
Cloud CityL to R: Luke (Bespin Fatigues), Lando Calrissian, Leia (Bespin Gown), C-3PO, Ugnaughts, Lobot, Cloud Car Pilot, Bespin Guards, Willrow Hood, R-3PO
Final SceneL to R: Luke (Medical Frigate), Leia (Medical Frigate), Lando (Millennium Falcon)
------------------------------------------------------------------------------------------------------
Here's a collection I'll call
"Stormtroopers & Friends". Basically any figure that is related to a Stormtrooper.

L to R: Stormtrooper, Sandtrooper Sergeant, Spacetrooper, TIE Fighter Pilot, Imperial Gunner, Snowtrooper, AT-AT Driver, Scout Trooper

L to R: Shadowtrooper, Stormtrooper Commander (The Force Unleashed), Incinerator Trooper (The Force Unleashed), Shadow Stormtrooper (The Force Unleashed), Shadow Stormtrooper (phasing), Blackhole Trooper

L to R: Jump Trooper, Jump Trooper (with Jetpack), EVO Trooper, EVO Trooper (camo)

L to R: Space Trooper, Space Trooper (larger), Dark Trooper Phases I-III

L to R: Hoth Scout Trooper, Kashyyyk Trooper (made incorrectly, but I keep it as a camo Scout), Imperial Engineer (Battlefront II), Special Forces Storm Commando, Storm Commando, General Weir