Works well, needs a little modification to simplify your end
This is super easy to make.  When it cools it is just a bottle of liquid conditioner.  Honestly it took too long for someone to come up with this<br /><br />I made it right in a plastic bottle.  I tested the bottle with boiling water first to make sure it would handle it.  Then I cut the cubes with scissors (cuts pretty easy) into smaller bits so that they fit in the bottle I wanted to reuse.  That part was a little messy and I had to gather up all the bits with an index card but worth it to save the step.<br /><br />Highly recommend
Rating: 5 stars