Not often. About once a month or so, and then only for minor things, like a holiday.
[img align=center]https://i.imgur.com/3sICEUT.gif[/img] [tot=Neverwhere] [egg=Neverwhere] [tp=Neverwhere]
I change little things maybe every week or so. But the theme stays consistent.

Haha I'm terrible... I change mine possibly every day to every 3 days. Usually don't stick with the same HA for long since I really enjoy swapping it up.
Plus I have too much crap I still need to use and play with. xD
I only change mine once or twice a month due to lack of time or inspiration. It gets to be a huge pain to shuffle through over 22k wears if I don't have a lot of time to do it, because I'm a bit of a perfectionist when it comes to what look I want.
When I'm on, every few days, or just whenever I get a sparkly new item I want to try out.
[img align=right]http://i.imgur.com/k259m.gif[/img]
I change it pretty frequently when I'm active on the site. Every now and then I'll make one that I like enough to keep for a long time, but I don't think I'll ever have a permanent look.
At least each season. The more I'm on, the more often I change
[Kiss=Jenluvscc]
About once a month, or when I have a really good idea.
Due to Stimulate, weekly. Otherwise, it's maybe every few weeks. I can stick with a look for quite some time before changing, especially if I'm into it. With certain holidays (namely Survival, Vesnali, and Masque), I change frequently. At least a change every week or every few days.
I change mine for the seasons and events, so about 7-10 times a year.
I change mine every now and then if something catches my fancy.
Not often at all.. maybe just to add/remove holiday items like a mask for Masq or the Morostide pumpkin patch/hex helpers.
When I'm actively in school, probably once every month or two? Often it's solely to make my HA more season-appropriate, or add things like masks or a costume. (Though really half the time when I'm doing that, I don't have the attention span to make a full HA based around the mask/costume, so I just hide everything behind a season-appropriate backdrop lol.) Otherwise... it depends on how excited I am over whatever shiny new item I have, really. I have a tendency to start making HAs to use a new item, then I get bored after choosing about three things and slap on whatever doesn't look overtly terrible to me. P: That's pretty much been my HA-designing process for the past half year.

Once a month, and I keep a gallery of all of them on my computer, its nice to see how far they've come since I first started playing.
Maybe 2 or 3 times a year. lol
Formerly known as its_just_me
(I started in March)
Wine is the answer
What was the question?
Like, a few times a year at most LOL. I've had my current one for months and the one before it I had for years ;; I never really play around with HAs unless an item inspires me enough. And by enough I mean A LOT because I'm lazy. I used to be such a HA person too. lol

I used to change daily. Lately I've been changing two to three times a week when the mood strikes. Occasionally leaving the same one up for a week or so if I really am happy with it and nothing else is going on that I have to change it for.
“Justice will not be served until those who are unaffected are as outraged as those who are.” - Benjamin Franklin
"Woe to those who make unjust laws, to those who issue oppressive decrees, to deprive the poor of their rights and withhold justice from the oppressed of my people, making widows their prey and robbing the orphan." - Isaiah 10:1-2