How to keep spray cleaner from freezing?

[seann]

I clean a lot of drains. So I keep spray cleaner in my van to use for cleaning up area afterwards. Problem is it's winter time and my spray cleaners will freeze solid in my van and are unusable.
Besides bringing them into my house every night. Are any particular cleaners that will not freeze? I thought about trying to add rubbing alcohol to mix in with the cleaner to see if that works, but a little worried about the safety of mixing the other chemicals with rubbing alcohol.
Do you have a method that works for you?

 

[Plumber69]

You could run and extension cord in your van with a heater. Or heat tape your cleaners.

 

[Sponsor]

 

[seann]

You could run and extension cord in your van with a heater. Or heat tape your cleaners.

Lol, that's a little more excessive than I'm looking for, but thanks. Plus it would still freeze during the day when I'm out and about. I did just run across a post on another forum a little bit ago where another guy was having the same issue. He claimed that he started using automotive windshield washer fluid as an all purpose cleaner. He claimed that it works as well as regular houshold cleaners and does not freeze, so I think I may give that a try.