If you’re logged in your Google account, Google Maps automatically saves the addresses, you search for and can hold up to 100 different places. To see what locations are on your list, sign into your Google account and click small “gray triangle” right of the search box. You'll see a list of recently searched locations, as well as option to “enable or disable automatic saving” of searches. Click Edit saved locations to see full list of saved places. Click Edit to change a particular address, as well as add a label. You can search using your saved labels just as you would an address; finally, you can click the green arrow next to a saved location to set it as your default location -- it's the map you'll see whenever you sign into Google Maps.
Source:→ Google LatLong blog