diff --git a/README.md b/README.md
index 568c4d0..dc684b7 100644
--- a/README.md
+++ b/README.md
@@ -27,3 +27,11 @@ To stop all emulators, run [`kill_all_emulators.sh`](./kill_all_emulators.sh)
 ## Delete emulators
 
 To delete emulators, run [`delate_emulators.sh`](./delate_emulators.sh)
+
+## Usefull
+
+- list devices: `adb devices`
+- select specific device: `-s emulator-5554` (eg `adb -s emulator-5554 shell`)
+- make a snapshot: `adb emu avd snapshot save snapshot-name`
+- load snapshot: `adb emu avd snapshot load snapshot-name`
+- start from specific snapshot: `adb @emulator-name -snapshot snapshot-name`