Banks and Budgeting

I'm wondering if it would be too much trouble for my bank to help with my budgeting sheet. My friend and I were discussing how the most difficult part of budgeting is simply remembering to regularly track all our expenses in our budget sheets.

There are companies like Mint.com that will track and categorize your expenses for you if you are willing to give them your bank account number. It would be so much nicer if the actual bank would offer the same service since they already have your account number and your trust. I would think they could easily create a budget sheet, link it to anyone's personal account and then categorize all their expenses into a budget sheet that they could personalize themselves and possibly even export - as long as the security could be good enough.

The bank could benefit by the sheet by of course having more fiscally responsible clients. Hopefully these responsible people would make more money, put more of it in the bank and be timely in all their payments on loans/credit. The bank would also have advertising space on these budget sheets, learn more about their clients and such. I may write my bank a letter about this idea. What do you think?