[CydeWeys]

You're well past the point of diminishing returns where it makes sense for you to focus your efforts more on increasing income rather than reducing expenditures further. If saving $1 per month is significant to you then it sounds like you've already cut your expenditures to the bone, and there's no more blood to squeeze from that stone. Even working a single hour per week at a part-time job would have better returns than extreme penny-pinching on unplugging appliances and rewriting entire applications to save a few bucks per month. I'm a frugal person, but not illogically so, and I know that income has no ceiling but expenditures definitely have a floor.

[kuschku]

I’m a student, I have not much time to work during the day, and jobs during the night are not exactly growing on trees.

Also, I’d still cut expenditures equally. Even my parents – both of which have studied law – do this. Actually, most people I know do. Why waste money on useless devices if it takes only seconds to unplug them?

[CydeWeys]

If you're capable of rewriting essential subscription web-based services from scratch instead of paying a few bucks a month for them, you're basically do have a part-time job at night, except that your few-$-per-month savings aren't paying you anything close to what you're worth. Rather than spending your time doing this, you should be doing some programming that actually pays you a good wage.

[kuschku]

Yes, I should just get a job – but that is long-term more work, and still does not fix the issue of wanting to run FLOSS.