I also have thread more than 3 years old and have no problems with it. I store my thread in plastic boxes with dividers...have one for regular cotton thread, one for embroidery thread, and one for novelty threads. Then also have a drawer full of varigated colors for quilting.

My sewing room has two windows - south and west. Streams of sunlight!! All of my fabric and thread needs to be stored away from the sunlight. I use plastic tack boxes from Menards. Keeps them out of the sun and dust. I have 3 currently, but oh darn - was at Menards today and should have bought another!!

Thread can dry out. We hear about it often here in the desert. Told if you put the thread in a plastic bag sealed up with a few drops of water overnight, it will rehydrate. I haven't tried it yet, but it's supposed to solve old, dry thread that is breaking. I haven't had a problem yet, but very little of my thread is older than a year.

Now, if you are in an area that is moist in the summer, I can't see it being an issue. When I lived along the Great Lakes we had 80% humidity a lot of the summer.

Oh, back on topic- I had my thread in a drawer, but I was given a peg stand as gift, so they are now on that.

I keep mine in a clear over the door 12 pocket hanging shoe organizer... I can see all of it at a glance and I can shut the closet door to keep them fro getting dusty and out of the sunlight..

I use Acid free photo boxes with golf T's glued in the bottom set the spool over the T and there is room to store your matching bobbin if needed. Saw this Idea on QB works great, but I don't have a whole lot of thread, each box holds about 24 spools. I have a diffrent box for each type of thread.

My thread is in plastic tote bases (no lids) in drawers 'kind of' sorted by color - black/grey/white -- pink/purple -- orange/red/yellow -- blue/green -- handquilting thread -- speciality threads

I keep mine in rolling plastic drawers I bought at the Dollar store

Newbee3, My grandmother always said to keep your thread "out of the sun". Her thread holder was always on the wall next to her machine. We never had any problems with the thread. When not in use (to keep dust off), my grandfather made a cover for this thread holder that just fit over the top (like a picture or a door without hinges). I know that as a young person sewing on this machine and using the thread from the wall was always a trip (just because of the lables on some of this thread would have a price like 15 ct - just think about the age of that thread). I know I use cookie/candy cans (with lids because I like the pictures), for my thread. That way I can have them out, but not all over.

I keep mine in bins too to keep the dust off and covered to keep the light off. I also have thread much older than 3 years and seems to be doing fine. I think they are concerned with rot but I have never found rotten thread.

I found a wooden scrapbooking drawer unit that is the perfect size for thread, the drawer handles had preprinted titles on them (paper, glues, stickers, etc) I taped paper over it with the colors of the thread (reds & pinks, blues & purples, etc) it sits next to my machine and is perfect to just reach into.