Good advice here. The hardest part for many is learning how to manually set boundaries that naturally exist while working at a store where work is in a literally different location.
The upside is that a lot of people learned how to work from home in 2020, so there's plenty of great advice out there.
On the customer service side, I learned a lot from this book, which I've long argued should be sent to every employee that deals with customers.
Always anchor high. Humans are highly susceptible to anchoring, so even if you ask for an outlandish sum, and it's above the range, there's a greater chance that they'll come back to you with a salary that they're willing to pay rather than drop you altogether. And the salary they offer will be higher than if you asked for a lower sum.
This comes from the Handbook on the Psychology of Pricing. If you want a raise of $15k, ask for $30k. If you want $113k, ask for $120k. If the top of their range is $80k, they'll tell you, and that's when you get to have fun negotiating.
"Hmm, well, that is lower than what I'm hearing from other companies I'm interviewing with, but tell me more about your benefits. Things like 401k match, vacation time, and how much you pay towards health insurance premiums are worth a lot and I may be willing to accept a lower salary if those benefits are good."
Let's say you're then comparing a $113k job with 10 days off, 2% 401k match, and health insurance premiums of $400/month against a $81k job with 40 days off, a 6% 401k match, and $0/month in health insurance premiums...
Anchor high, then negotiate. Most everything can be negotiated, and they'll tell you if something can't be. If you get disqualified for trying to have the conversation, you probably don't want to work there.
The best way to advertise is to have something people want to buy and a very clear one-line value proposition on how it will change someone's life for the better. Building a Story Brand is one of the most approachable and easily implementable books on creating marketing content, with great examples, and even a step-by-step guide to your home page.
Generally, beyond that, most "free" marketing actually means that you put effort into it. For example, content marketing where you gather a library of helpful resources that attract people, and occasionally advertise your product/service along with it. u/bawlerblog posted a comment in this thread where the offer free content marketing advice (For tech related niches). Even if that's not your niche, there will probably be other people offering a free content-marketing strategy session who are hoping to sell their services that way.
The other thing people do is create a free download to attract people who will sign up to your email list (and who you can then advertise to). The easiest way to create this is to create a free guide/tool/step-by-step exercise PDF that will make someone else's life easier. This adds an extra step in advertising, but it has the benefit of allowing you to offer something for free rather than immediately asking for something.
I'd create a brand messaging framework to reflect back to and re-wireframe your website with new copy. If you can't hire a conversion copywriter + designer, I highly recommend reading Building a StoryBrand. I work in this field and it's totally worth the investment of time and/or money–whichever you prefer. I use this method and so far, all but 1 of my marketing clients made their money back within the first 2 months. Copy is powerful!
Given that I am trying to bring the audience to speed quickly on something they would unfamiliar with, I would apply the principles outlined by something like Story Brand.
In the ad I would want to:
Identify how this product addresses a felt need, enables the person to achieve an aspirational perspective of themselves, concluding how your company could guide them and how your product accomplishes that goal. I think of the way apple interacted with the budding portable music player market.