Affiliate marketing. You know this one already. You include links to products you are promoting as an affiliate, and every time somebody buys the product, you get a commission. With a blog you can integrate advertising with content to make it even more likely you’ll get the sale. For example, you could do a product review — which is useful content — and then include a link to buy the product under an affiliate link.
Starting a pet sitting service requires almost nothing in start-up costs. You do need some general credentials that will cost little or nothing to acquire. Your list of credentials should probably include personal pet ownership--if not currently, at least in the past--as well as other pet-related experience, including working at a pet food store, an animal hospital or other animal-related business. You will need to spend a little to become "bonded." This is known as "honesty insurance," and ensures your clients that you won't get their house keys and make off with their valuables (or that they'll get their money back if you do).
But many people put themselves in a very similar position by starting home-based businesses without considering the profit angle. Business is about profit, and without sufficient profit, you'll never have enough income to even pay the bills, let alone generate wealth. (For more on creating a business that actually produces income, see Change Your Business Model and Watch Your Profits Soar!)
When you have your name decided on, you have to register it. Nominet is the official registry for all UK domain names. The UK Domain by Nominet provides free expert advice helping businesses to achieve more online. The domain search and domain name comparison tools will help you to check that your chosen .UK domain is available, then present you with a selection of accredited registrars to choose from, giving you information on each so that you can make an informed decision to buy a domain with confidence.
The third element of the strategy is the type of post you go for. If you’ve got long-form content in the shape of reports or e-books you can draw upon, create mini campaigns around them and publish quotes or key stats over a number of days with links to your website. It’s absolutely fine to post about the same thing more than once, but don’t forget to use trackable links to check what posts work best.
The price for web design ranges from free to $2500.There are too many companies that offer web design so do your homework and ask for references. Several hosting packages come with free templates for you to design your website yourself. If you need someone to help, Fiverr.com has people with pretty good skills that will create simple websites starting at $5 and will give you excellent deals for more complicated designs. You can find logo creations, SEO services, and advertising services starting at just $5.
Try to avoid some of these common start-up mistakes: not writing a business plan; not conducting adequate market research to see if a profitable market exists; inadequate marketing; poor customer service; and poor money management and attention to your cash flow. Business mistakes are inevitable, but if you concentrate on each aspect of your home business and follow the advice of your experts, your home business will survive where others’ might fail.
Nothing beats teaching more novice learners about your passion, hobby, or craft as a business idea (that's a common theme here). Explore dozens of DIY portals (such as DIY.org, DIY Network, Instructables and Mahalo) to get business ideas on how to earn a healthy side income just by showing others how to do the things you love. You can also sift through the countless ad-supported YouTube channels that teach just about anything from guitar strumming to 3D printing.
Another big suggestion is finding small and easy ways to test business ideas and assumptions. I think this is implicit in your post. For example, if you have an idea for a digital course, you may do a free webinar on the same topic first. If you can’t get enough people to show up for a free webinar, then there probably isn’t enough interest for a paid product on the topic.