Ask 10 working moms which breast pump they recommend and we’re guessing about 9 of them will say the Medela Pump In Style Advanced. This double-electric pump is portable, efficient and reliable, so it’s perfect for using every day (it will become your best friend!). It comes in On-the-Go Tote and Backpack versions -- both of which are great -- but if you have a little extra money to spend, we say go for the Metro Bag version (pictured here). It costs about $80 more, but the pump can be taken out of the bag, giving you more options for how to carry it and where to pump. $350, Diapers.com