> I think it's best to change your situation so that the right choice is the easiest to make.

Lowering the activation energy required to do cardio by getting my own treadmill in the living room really helped me get into the habit of doing cardio more regularly.

Now instead of paying every month for a gym membership I rarely used, I end up doing a good 3-4 hours of light cardio every week, opportunistically, because it's so easy to get started, and I can play music and watch shows while exercising without worrying about disturbing others, making it a much more enjoyable experience overall.