Just some ideas.... Please do not use your $800. at once try these low budget options before buying things you cannot sell....
1. join something like Link hidden: Login to view or Link hidden: Login to view. it is a good system that shows you how to start earning while you are learning. This helps you design a system that will give you long term income. Gives you opportunity to create several streams of income.
2. Go to forum.digitalpoint.com and search for popshops. In general you will find alot of info there for free. Go to Squido.com and create at least 5 lenses pointing back to your shop... check out you tube and type in popshops then check out tiffany dow as well on google or you tube. Join Link hidden: Login to view as an affiliate and then go to Link hidden: Login to view sign up for the $5 account and open your own store based on cj products. .
3. Go to Link hidden: Login to view and Link hidden: Login to view and look for popular merchants. like abercrombie, aeropostale, hollister, american eagle. Go to Link hidden: Login to view or Ebay and do a search for completed items that sold last week to see what products sold for. Use this link to check your fees and profit before you list and then scale up to your desired income. This is the link for the ebay calculator. It also includes paypal fees as well.
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hope this helps....