This icon... has a story, I just don't actually remember it. Back in first year of university, when I was living in residence trieth would come over and visit raxhel and I, and we'd get into the silliest conversations. One of them was about garden gnomes. This picture was the result. In the full sized pic there's also the text "Gardens will never be the same again". This was the first photo manip I ever made, and I'm pretty proud of it, so what if the hands look really fake :P
As for what I mean when I'm using it... well, I don't actually get to use it all that much. But generally when I do, I'm either being ridiculous, am expressing an irrational fear, or just want to show it off. :P
This icon was made by thegreyladies and is probably one of my most used Numb3rs icons. I took it because I adore Don, but I love it for it's cuteness. I've named it Boyish Don, and generally use it to express amusement, or cheekiness or just plain happiness.
One of my Megan/Larry icons, made my hyacinthgirl_36. I love this icon because, who can't love Larry/Megan? I've had het ships that I like, but Megan/Larry is the only one that I've loved as much as some of my slash pairings. I love this icon specifically because I think it really highlights the differences between the two of them; Megan is smartly dressed and looking totally hot, while Larry is dressed more casually and looks a little lost. I mostly use it if I'm posting about Numb3rs and don't talk about a specific character, or if I want to express the cuteness that is Larry/Megan
Icon by obaona. Elizabeth/Ronon is another het pairing that I like, but I'm not as in love with. I have it as an icon mostly because it was one of the first E/R icons I could find (I've seen more since). I don't use it that often though, mostly because I love my Rodney icons too much.
I absolutely adore this icon by le_mot_mo. It can be used pretty much anywhere. I use it a *lot* mostly because I often try and convey facial expressions when writing online. Some of you have probably been driven crazy by my excessive use of :P (and :S and :D and :-/ and :).
Icon by berlinghoff79. I actually have a secret love of mpreg and parenting fics (in certain fandoms, it drove me crazy in QaF when they'd just *become* pregnant, at least in SGA you can (try) justify it). I took this one because I also love Carson. I've only used it once so far (it's hard to work in), and in that case we were discussing Bad!Fic, so I felt it was appropriate.
Icon by Me! I love this icon. And I love that someone on my flist also uses it. I actually made it earlier this year when I made up my hockey icons, I decided that I needed more Canadian icons, and a Timmies one was the perfect choice. I don't even drink coffee, and I can't imagine a world without Timmies. I mostly use it when I'm talking about Canada.