Budgeting For The Future

We live by a budget, and it is my job to put that budget together and make it work. We have never had a problem following the budget I have laid out. It is very detailed from what bills are due when and how they are paid. (Debit card, check, etc.) Here is what I have so far. Any advice would be greatly appreciated. 

DH gets paid twice a month, well, every other week. After bills, we have x amount of dollars a month for any food we have to buy, extra bills we have to pay for some reason, extra spending money, or if we want to invest it, add bills, whatever. My question is, I do not want to waste the money on just going out to eat or buying things. I want to put it towards something productive. We thought about a college fund for Samantha, a house (and the extra house bills), more donations to the church or wherever we choose...Just not sure. Any advice? I want something that will do us some good in the future, not just now.

Internet is not in the budget because it is free through Jessie's job. And car insurance isn't in the monthly budget because we pay it off in 6 month policies.

Week One Satellite-Automatic Withdraw 05th	Entertainment	$30
Week One Netflix-Automatic Withdraw 15th	Entertainment	$10
Week One Credit Card By Debit	Loans	$25
Week One Gym-Automatic Withdraw 15th	Entertainment	$30
Week One Savings-Online Transfer	Savings or Investments	$100
Week One Gas Debit	Transportation	$60
Week One Electric-Online Bill Pay	Housing	$100
Week One Phone-ATM	Entertainment	$70
Week One Life Insurance-Automatic Withdraw 11th and 19th	Insurance	$10
Week Two Rent By Check	Housing	$550
Week Two Gas By Debit	Transportation	$60
Deductions (Taxes 401K Stocks and Health Insurance)	Savings or Investments	$250
Every 6 Months Car Insurance	Transportation	$500