Options:

1. Spend a lot of time cleaning your pool.
2. Hire someone to spend a lot of time cleaning your pool.
3. Buy a magic wand that allows your to magically clean your pool.
4. Maintain your own personal Florida wetland and swamp.
5. Cut the trees down.

Non-option:
1. Buy a pool-store magic cleaning gizmo. (Costs $$$; won't solve the problem.)

Having good cleaning tools will help; getting a high quality pool automatic (really, 'semi-automatic') vacuum will also help. Running your skimmer more hours will also help; using the low speed of a two speed pump will make doing so affordable.