How to buy routine household and grocery items within allotted budget?
Your teenager should know how to do household shopping within given budget. So, the best way is to take him to any supermarket where you go frequently and hand him a list of items you want. Tell him your budget and let him pick the brands of his choice. Meanwhile, you too pick the same items which carry the brand you usually prefer. Then see whether your teenager has selected the quality items within given budget or not. If not then show the items you have selected and tell him why they are better. This is how, your teenager will learn to compare the prices, quality and other specific things of items before doing the right household purchasing.