I take full advantage of the Request a Quote option on Yelp. Once you type out your request, Yelp gives you the option to submit the same message to similar businesses nearby. I click the max amount available (up to 10), and find that most people start responding right away! I’ve used this recently to find the cheapest and fastest phone screen repair. — CD

Amazon’s Interesting Finds will give you pages of really cool, surprising stuff. I don’t know how they are curating it, but I particularly like the Fun option. — KK 

Amazon now has a section where they sell originally Kickstarted projects. Bottom up retailing. — KK 

Prices on Amazon oscillate week to week far more than you might think. Paste an Amazon url into Camelcamelcamel.com to see the chart of an item’s price history. If you are not in a hurry, you can use the chart to set a plausible low target price and Camel will send you an alert and buy button when (if) it reaches that price. — KK

Before buying something on Amazon enter the URL for the product at fakespot.com. This free service will analyze how many shill reviewers have rated a product, and award a “Fakespot Grade” from A to F. A low grade doesn’t necessarily mean a product is bad, it just means you shouldn’t take the reviews and user ratings into consideration when making your decision to buy something. — MF