$50 for a one off thing, for a gym buddy is fine. in the blue collar world, that would be a 'case of beer' for helping me out.
But in business, you need to charge an honest / fair amount. (sure, sometimes that 1 hour bug fix had $100K of 'value', but we could argue about honest / fair).
You mention being an employee at $100K a year. Double that, gives you a contractor rate of $100 an hour. That is the floor of what you should be asking floor; as in the absolute lowest. Another $50 or $100 an hour is still fair and honest in todays economy.
But in business, you need to charge an honest / fair amount. (sure, sometimes that 1 hour bug fix had $100K of 'value', but we could argue about honest / fair).
You mention being an employee at $100K a year. Double that, gives you a contractor rate of $100 an hour. That is the floor of what you should be asking floor; as in the absolute lowest. Another $50 or $100 an hour is still fair and honest in todays economy.