preventing leather chemicals from freezing

[Snores]

I have recently moved all of my leather work into my shed out of a bedroom in the house, made it into a small shop. My quandary is that I want to move all of the dyes, finishes etc. into the shop because it's a silly thing to be working in the shed and have to come into the house for a bottle of dye. It isn't too cold yet, but living here in Colorado I know that eventually it's going to be in the low teens and below Zero soon, so I am wondering if anyone would have some workable ideas on how to keep those chemicals from freezing? This morning the outside temp was 28 degrees and inside the shed it was 40. So with that info I am predicting the inside temp will soon be at or below freezing once the outside temps reach 20 degrees. That will be very soon. 
I have attempted using a 20 quart cooler, but I am Leary to have electrical heating in the box with chemicals. 
I am open to any and all ideas.  

[fredk]

Wrap each bottle in bubble wrap. Make sure its very warm when you do tho. Bubble wrap is a fine insulator; it'll keep things cold or warm, but it depends on the temperature when the item is wrapped.

I use medium sized bubbles, not the small ones nor any of the larger.

This will help keep the bottles warm for a while but you may have to go out  to warm them and re-wrap them 

[HandyDave]

Here in NC we don't get as cold as Colorado but winter gets cold enough to freeze some of my leather stuff if left in my shop during winter. The alcohol based dyes ain't really a problem but alot of the stuff like paints and finishes and oils and glues I have had problems with. I thought about taking one of my cabinets in shop and insulating it with foam board or something. But what I end up doing was buying me a dedicated tote. I got one of those stackable rolling tool boxes but a cheaper one. It holds all my supplies and keeps them somewhat organized. And it makes it easy enough to just bring in the house with me and roll it out to my shop when I'm working and shop is heated up. I was gonna use a old rolling suitcase that I have laying around and make some dividers for it but found a good deal on the webs for the box I got.