How do you practice?

I've been doing pole classes for a few months mostly just for funsies, but now I'm getting more into it and want to actually practice in between classes. Open pole time is rather expensive where I am ($25 a visit). I rent, so I'm not sure if I could get away with a tension pole, but it's something I've considered just for practicing basic spins and floor work (nowhere near invert level yet!).

So all that to say -- this is a fairly expensive hobby. How do yall practice without breaking the bank?