# req-017

As a user, I want:

- Buckets to represent real categories of spending, like beer and holidays;
- Pipes to represent how much I want to come in and out of each bucket;
- Each real transaction I make to be associated with at most one bucket;
- Buckets to have a balance, which is the difference between the amount of money
  which has flowed in from a pipe less the amount taken out by my transactions;

so that I can have buckets and pipes which express how I want to distribute, and
have previously distributed, my incomings and outgoings.

Source: req-002