Prime Day is a pain in the ass… You can find some great deals, but only if you are willing to pull the trigger immediately because the deals expire at random.
Thus far, my favorite deal is probably the 25% discount on the Fellow Ode Coffee Grinder. These things are expensive, never go on sale, and work better than anything else on the market. They are also built like a brick shit house.
For now, you can find the deal here.