I'm about the same as Kink. There are times where I'll change it every day for a few days in a row, and then sometimes I love it so much I'll keep it for a few weeks. ^^'
Also depends if I buy a new wish item. I'll usually make a new HA if I do.
I try to change once a week. I don't think I could be one of those people that change daily. I think my brain would have a nuclear meltdown. lol If I am getting a fair amount of likes, I let it last longer. If not, I try to change it. I am general inspired by a new item or a holiday or just a mood. <3
Multiple times a day! I recently joined and when I see an item, I decide to try and make a look around it, but I usually always go back to my normal outfits. :)
Leave it to me: I'm always top banana in the shock department.
I'm usually pretty content with mine. I changed it today, but I hadn't updated it in probably 2-3 years beforehand.
I'm terrible for myself because I love making outfits but I put so much effort into them that I don't want to change it so I have saved avatars I've actually never worn... I just want to wear multiple outfits at once I guess ^^ the phrase "too much of a good thing" springs to mind

Super rarely tbh haha. Like every year or so it seems. I always have the urge to switch up with a different theme each season but I'm far too lazy pfft.
Not that often. I make better avatars when I've taken a little break, but I can get rusty. During the months where I don't have a gold account, I very rarely change the avatar. There's been times where I just stick on the whiteout and call it a month (or six) because I've not been in the mood, haha. Trying to make a conscious effort to make at least four per year though. Purely based on seasons or holidays. Succeeded this year. Sorta. Two were seasonal (including this one), one was a random one, and the last one was based on two CWs I'd bought because they looked pretty during masquerade.. so that's an event one, I guess. Technically the other seasonal one was a halloween one also, since I'd had an attempt at a sort of 'autumn' HA. It went poorly for some reason.
Once every few weeks, I think? I love making HAs but I feel like my wardrobe isn't big enough to constantly be changing outfits and I'm usually quite proud of the outfits I make so I like to leave them up to look at them for a little while!
I want to change mine much more often, like at least once a week or every other week. But every time I step into the wardrobe I get indecisive spend forever getting halfway done with a new look and then give up. I have a lot of half finished shared HAs piled up. XD
Way too often. At least once/twice a week if I'm active.
I don't change mine very often, maybe once every couple of months. It isn't really something I do on a schedule but more based on feeling: if I'm sick of my current look, or I just got something new I want to try out, I'll change it.
Not often enough, I'd say every 6 weeks. I used to change it weekly and kept a nice StyleFile account going. Life is too bizzyyyy!
I'm pretty bad at making an HA that matches and looks cute/interesting, so I generally try different ideas until I settle on one that I like. Then I'll change it up every season or when there's a new holiday. I do pretty frequently change details and add new things, and if I get a bunch of cool new items all at once, I'll usually at least try to make an HA that uses them.
It really depends. Sometimes I'm the same HA forever, and then I find a new item and have to make a new HA like immediately :'D Then comes a new plot, or a holiday, and I wanna do something for that, so I have to change again... (subetian problems xD)
I change a few items every 1-2 days until everything stops fitting together and I have to make a totally new one.
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I used to change mine a lot, probably a few times per week, but then my wardrobe got too full of junk and I just didn't bother with it anymore. D: So, umm, I guess I change mine like once every couple of months...? But I did recently move all the nice things in their own drawer, so I might be more inspired to change my HA more often now.