Do you set a budget before buying everything?

I normally plan a rough cost, although that can be pretty hard to pinpoint when you walk into a store and see the vibrant colors and the costs with them.

Always, but I budget everything.

i try to plan ahead but sometimes due to low stock items it's impossible to match your budget 100% unless you buy everything at once

I always budget when it comes to buying everything that I need so that I know exactly how much I need, and I know that I will be able to afford to buy all I need without the worry of getting so much and being without some. The last thing I would want is to go on a huge spending spree for everything I needed and getting to a point where something I really did need; I couldn't afford at the moment and then just being left with what I had until I could afford to get what I hadn't got the first time around.