Best way for figures in storage.

Heat is not a problem. My old Jakks are stored in my parents' attic in plastic bins in North Carolina, where it can hit 100 degrees in the summer. Last time was there, they were still fine.

If you throw them in a bin with no organization, their legs will get super bowed. The legs use much less plastic then upper bodies, so all that weight of other figures pressed against them will warp legs. I learned that the hard way with Jakks. Mattel is just as susceptible.

What I do is I stack the figures in the bins. The bottom layer is flat-backed. Then next layer is facing down, feet-to-head with the first layer. This helps prevent sliding. Then you either atack the remaining layers alternating between face up, face down each layer, or you can stack each following layer face down (which I currently do). But always stack them head-to-foot with the previous layer. Next I place a figure standing up in any gaps between stacks. This further prevents sliding.

If you do that, it will help keep your figures prestine and free from warpage.

I've just removed mine from a year long storage, they were in my brothers garage and everything is fine.

I had just stored them in plastic storage boxes as I thought I'd only have them there for a few weeks -.- ha

So don't worry about heat or cold unless it's extreme because the figs are more durable than you'd think.

I strongly suggest not storing in an attic.
All my old toys in my moms attic are ed after 25-30 years

I have all my figures in the attic and I check on it once every month and no problem

Thanks guys. I am gonna end up buying like 15 bins and making sure they got plenty of space.

I put them inside boxes I usually go to target and get the boxes they came in or go to Home Depot and buy boxes

Ventilation is key too with an attic, and especially a basement. You don't want to get mold or mildew, or even the smell there.

When not on display I keep my figures in 15L Rubbermaid bins. I lay them flat, then, like someone above mentioned, stack them head to feet until I fill the bin. Usually fit two rows of figures, 4-5 figures wide and about the same deep. Now, I also place each figure in clear baggies. I use acid-free baggies made by a company called GT Zip. I highly recommend them as they reduce rubbing and help keep accessories together.

I first learned about them on someone else's blog. I think I've mentioned them on this forum before. They can be a little expensive because you have to buy in bulk (about $45 for 1000), but worth the investment. I store all my figures that way.