If you have a Shared Web Hosting account, you may not realize it, but you also share the cost of server maintenance with other clients. This is a big reason why a shared account is reasonably priced. Also, your provider is expected to be responsible for security updates, installation of server software and any other server responsibilities.
There are limits as to what can be put on the webpage though. Every website will be different just like every web hosting company. There is going to be a lot of disk space for some companies that specialize is web hosting but not all of them are going to have an unlimited amount of space.
Another key ingredient to finding Affordable Web Hosting is to make sure the control panel is simple to use. Most people that own websites aren't programmers. The webhost should provide you with an easy-to-use program that allows you to manage the site. If possible, try to see a demo. This is a great way to really get a feel for the controls. It's the equivalent of taking a car for a test-drive. See how your website might look sitting behind 'the wheel' of their control panel.
So, you have a name, a plan and a place for your site to live. Finally, it is time to start designing! The choice here is to try to build yourself, "self-build", or find a professional to do the job for you. A half way house some use is to find a family member or friend who dabbles in web design and will do the job for as little as a case of beer. I would strongly advise against this route as the design process can be quite intense and is apt to place some strain on any personal relationship if significant redrafting is needed or the design is not all you had hoped for. If your first designer is not up to the project you can fire them and move on. Letting go of a family friend can present far more issues.
Web Host Country - Depending on your market, this could be the most important consideration, and often the most overlooked. The physical location of your host servers can have an impact on your business if your target market is in your own country. Google UK, for example offer the option of either a UK only or a world-wide search. If you want to feature in the UK only searches it is far better to have your website hosted by a company who has its actual servers in the UK. Be aware that some Shared Web Hosting UK hosting companies who appear to be UK based companies actually have their servers located in other countries. Always ask!
I am from the UK and a few years ago I would struggle to purchase products from the United States online. This was because most websites only accepted major credit cards, but I had a debit card and this was not always accepted. But this is less of a problem now that more companies are accepting PayPal.
As you can see shared web hosting offers a myriad of options with minimal costs. A precursory search will provide ample hosts that offer reasonable prices for reliable service.