Improving balance requires doing exercises consistently. But it doesn't require carving out a special time. The idea is to find a few favorite exercises that you can remember easily. Then do them as often as possible. Spending 5-10 minutes every day doing a simple exercise like balancing on one leg is more effective in the long run then only doing balance exercises once a week.
When I was doing physical therapy to rehab a knee in 2012, I had homework to do between PT sessions. Those exercises didn't take long, but it was important that I did them at least once a day. Improving balance was a key goal.
7 Balance Exercises for Seniors-Fall Prevention by Physical Therapists
Jan 2017, 11 min
https://www.youtube.com/watch?v=BNC4bi3Ucac
Balance Exercises - 10 Minute Home Workout to Improve Balance
Sep 2016, 10 min
https://www.youtube.com/watch?v=PQLiXC31Nrk
25 Lower Body Balance Exercises
Nov 2016, 5 min
https://www.youtube.com/watch?v=EcK8btsPN9Q
1. Single Leg Balance (0:42)
2. Single Leg Balance With look Up(0:55)
3. Single Leg Balance With Hamstring Stretch (1:04)
4. Tree Pose(1:14)
5. Tree Pose With Arms(1:21)
6. Warrior III (1:31)
7. Airborne Lunge (1:38)
8. Skater Lunges (1:52)
9. Skater Hops With Reach (2:02)
10. Single Leg Deadlift and Reach (2:12)
11. 3 way Leg Swings (2:24)
12. Skater Lunge (2:46)
13. Lunge with Knee Drive (2:56)
14. Step Up With Balance (3:09)
15. Step Down (3:22)
16. Bosu Squat (3:34)
17. Bosu Lunge(3:46)
18. Bosu Side Lunge (3:57)
19. Boss Squat #2 (4:09)
20. Surfer Squat(4:24)
21. Blue Pad Balancing (4:33)
22. Blue Pad Deadlift (4:43)
23. Lunge To Balance (4:54)
24. Balance Taps (5:08)
25. Single Leg Squats (5:26)