Last year, Google released a brand new launcher with the Nexus 5 — dubbed Google Now Launcher. While launcher does not look radically different from other similar offerings on the Play Store it offers quick access to Google Now with a simple left swipe on the homescreen.
If Google Now is of not much use to you, this feature might not seem a biggie. However, if it does, the ability to access Google Now in an instant with all the relevant cards already present is a boon. Sadly, Google has only made the launcher available for the Nexus devices running Android 4.4 KitKat. While there are ways to install the launcher on other KitKat running devices, Jelly Bean users have been out of luck so dar.