Car safety is one of the top priority for parents when they’re carting their children around town and even when their kids become old enough to drive themselves. It is important for parents to be completely aware and undistracted on the road. In today’s fast-paced society, it’s far too…
1 - start by reviewing stuff you already use and love
2 - make contact with PR reps or directly with the publicity contact for the companies who put out the products you're interested in reviewing (P.S. after a while, you'll start getting contact directly FROM reps who want YOU to feature their products)
The best piece of advice I can give you is to say that the more exposure you have and the more PR reps like your blogging and writing style, the better chance you have of getting contacted directly, and then the product review requests will start trickling in.