The last 18 months or so, I've only been selling around $120,000 per year.

Lots of customers seem to think that most sellers make like 60-80% markup but that's only the case in clothes and jewellery.

I generally mark up around 30% and after all the costs, I get a lot less than that.

But before the retail downturn, I was turning over around $250K a year, which at the end of the day means around $20K profit, so yes, I am living on the breadline so to speak but I'm only hear to pay the bills, not really interested in getting rich. 

And yes, that's a lot of packing to do, I do everything myself, from ordering the stock, to listing, to packing orders and addressing the packages, taking them to the post office etc.

You don't need that much bubble wrap if you used the bubble wrap padded envelopes that I use.  And bigger items go into boxes.