YNAB is a great tool for budgeting, but it doesn't help you stick to your budget. Beeminder can help you stick to your budget, but it doesn't help you plan your budget. Together, they're a powerful combination.

You set a goal for how much you want to save to an account over time. Beeminder will keep track of how much you've saved, and make sure you keep saving. More details in the blog post

You can set a goal to save $1000 in your emergency fund, or $5000 for a vacation, or $10000 for a down payment on a house. You can set a goal to save $1000 per month, or $100 per week, or $10 per day. You can set a goal to save $10000 by the end of the year, or $1000 by the end of the month, or $100 by the end of the week.