Those are minimum wage jobs, in Ontario its about $14 per hour. If you have to do these kind of jobs, my advice is to try and do evenings and weekends only. Save your "day-time" for doing things that can have a larger impact on your professional job search, such as attending Networking events, meeting with Recruitment companies, attending Professional programs, attending interviews etc.
You would never get an interview call at night or on a weekend, but during weekdays-(09:00 to 05:00 pm) you can receive a call anytime as long as you are actively job-searching so better to be readily available
It really depends on what you are selling...for example in the IT/Telecom industry a person doing "door-to-door" Sales for internet services would make around $40k - $45k per year before tax, but an "IT Solutions Sales Manager" could be making anywhere between $60k to $120k depending on experience, profile strength etc and level of skillset the job requires.
What is your field/specialization or Industry? If you describe more what you do, i may be able to provide some insights