When training a dog with separation anxiety to be comfortable being home alone, it's essential we use some sort of camera so we can watch the dog while we are on the other side of the door.
This is so we can see if our dog is going into a panic or not - the goal being to return before that happens during the desensitisation process.
But, we get it ... times are tough. And guess what? You don't actually have to spend a fortune on one to get the same effect.
There are a tonne of camera brands you can buy - some are high tech and some are low tech and they come in a range of prices too.
But if you budget doesn't stretch that far consider setting up a private Facebook live event on one device (inside your house) and join it on your mobile phone (while on the other side of the door) so you can see what's going on.
Alternatively, you could create a Zoom or Skype call and tap into it on both devices.
Don't let cost (or fear of price) let you stop finding solutions to training your dog. Where there's a will there's a way!