I'd like to clear out my wardrobe (46 pages!). Is there a way to move everything to my inventory at one go?

In the old wardrobe, click on the link on the left that actually says 'Wardrobe' (where you create and sort to drawers). You can check all the items in your selected drawer/category in the left column, arrow them over to the right column, then select to move them to your inventory.

Inventory only shows 250 at a time for GA users, so sorting and subsequently moving 46 pages worth of items is going to cause a bit of consternation. I would assume you may have page freezes and errors, but having never tried that many at once, I couldn't say for sure.

Worked like a charm. Thank you very much! :D

i sorted my wardarobe about half a year ago. If you want to work towards the filled wardarobe you can of course (like i did) create a drawer (with the same menu wise mentioned) for clothes you think are ugly and dump all the ugly clothes in there, that way you get the points for the filled wardarobe achievement but you wont have to sort trough all the junk whilst making a HA. You can also create drawers to make dressing your HA even easyer like for example making drawers for things that make your HA non human like wings and tails, or for clothes that you use most often.

I've given up on that achievement. Too much work to sort through everything and I'm not a fan of the HA feature anyway. :P Just wanna get rid of everything now and earn some sP.

But thanks for the advice! It'll be useful if I decide to try again some day. :)