I own a store and have some things on consignment. I suggest you buy very small bottles or some other kind of attractive packaging for your products and put a sticker label on them and drop off a sample and an idea of what you'd like to charge. Some stores may buy things outright from you, some may put your stuff on consignment.
I love it when people put things in reusable containers. I buy all my essential oils from one place just because I like their blue glass bottles. Are you wanting to sell these to the people who plan to use them, or are you wanting to sell them to people who are buying a gift for their hippy sister that is anti consumerist and doesnt want anything from a big box store? The packaging and price will vary a lot depending on how you answer that question. You can sell stuff in cheaper containers at farmers markets and craft fairs than you can if you sell it to a retail store. When you are marketing directly to the customer, you have to charge a reasonable rate for the product, but when you are marketing your item as a gift, you can charge more because people dont want to buy cheap gifts.
I am drawn to the following things in the packaging of a product (because in my head it means "sustainable" or "natural" somehow)
glass bottles or mason jars
brown paper bag looking labeling
pacifist, caslon, poor richard and longview fonts (if you start looking around, youll notice almost everything at local health food stores is in one of these 4 fonts.)
cardstock paper, fabric glued to cardstock paper, tied on with string for a tag
handwritten price tags
I also love old medicine looking things
This is a great source for containers. http://www.freundcontainer.com/category.asp_Q_p_E_||22_A_c_E_23_A_Narrow+Mouth+Glass+Bottles
Depending on the actractiveness of your product (does it need to be shaken, is it a weird color, is it pretty or kinda weird looking? is it thin or thick?) would determine what kind of bottle Id pick and what kind of lid.
My ideal situation for buying homemade liquids (laundry detergent, shampoo, conditioner, dish soap) would be a glass bottle, with a tag hanging off the neck that listed the ingredients but not a sticker label because I dont want it to get all peely in the shower. A cork would be nice, but that would make transporting more dangerous.
I dont care if its homemade or not, I will rarely buy anything that is packaged with too much packaging or in plastic. I flinch when I buy persimmon pudding at the local fair because they shrink wrap it.