Grab your Android device and navigate to the Settingsmenu (either by tapping the physical Menu Button and selecting Settings or by opening your application list and selecting Settings as seen in the first panel of the screenshot above). Navigate to Applications and then to Manage applications.
Select the app you want to stop .be careful some apps like Google settings can affect others apps. then click disable option. Before that don’t forget to clear cache.similarly you can enable it when needed. This can reduce the memory space and you can replace with your favorite apps.
Moving to SD card
Move the app/games to external storage that are rarely used . For example if you paly many game move them to SD card . Some app will not allow you to move .
Using Lite version of apps
Now days ,if an app gets famous then it will be followed by the launch of Lite version. If your phone have low storage or low graphic quality you can make use of this Lite version apps.
Avoid AV an Cleanig apps:
Don’t use antivirus and Cleanig applications as it will acquire lot of permission and can able to outperform your phone .These are some of the techniques that I use to make my phone look and work good hope it will help you too .