If you are not sure where to start, look at what your competitors are charging. If your products are cheaper your customers may assume they are poorer quality rather than assuming they are just good value. So be careful. Out of all numbers to end your price with, the number 8 is supposedly the best. Don't include shipping and handling in your prices.
Buyers understand that there is a cost involved in having something delivered.
Including this cost just makes your product look more expensive than it really is. Pricing high gets you fewer customers , but maximises your profit on each sale - great if you don't want too many customers and perfect for unique or revolutionary products. Only the right market will pay the right price. Products have hidden value which you can promote. Be careful of taking the middle ground.