We have not. I've wanted to, but my wife always shoots down the idea.
Do you need her permission?

Not trying to be a home wrecker but it doesn't have to be fancy. Dh didn't help me make the one I've been using for 10+ years, nor did he have any input. If he wanted to, he would have told me. I just told him I'm paying down our debt and now I'm watching more closely where our money is going. He said good. He's been handing me his paycheck since 6 months after we started dating and that was 1992.
This is what works for me. YMMV. I list each incoming paycheck, whatever the typical amount is. Dh and I get paid biweekly on opposite weeks so every Thursday is payday. I color code each week to keep me organized: purple, orange, green, blue. So for Jan that would be the 4th, 11th, 18th & 25th.
Below that paycheck amount, I list all the bills that need to be paid with that check. So using this month for an example, for something that is due Feb 1st, that would be paid with the paycheck before that the 25th, (the blue week). If something is due Jan 15th, it gets paid using the 2nd pay of the month so that's the orange week, Jan 11 paycheck. I pay those bills when I get paid, not on their due date. It's ok to be a little early. Direct deposit hits Thursday morning, and payments were all scheduled in advance to occur right away. If your direct deposits are not reliable, like dh's employer, I schedule for the next day. My direct deposits are like clockwork so I actually schedule the payments for the day before payday. So the money goes in around 3 am and by noon, the bill money is removed. First things first.

I also set money aside either weekly or biweekly in different savings accounts for bills that don't occur monthly such as car insurance, homeowners' insurance, property taxes, etc. We use Ally Bank (online) for that and I schedule those transfers as soon as I know the exact direct deposit amount. Whatever is leftover goes to the snowball goal.
If too many bills are due around the same time to be able to cover them all with one paycheck, then some of those need to get bumped to the week before. Then I allow at least $100 cushion in our checking account so it doesn't get down too close to $0. If it dips, it will be replenished with the next paycheck. When I was brand new at this debt snowball, I would have had to redirect the snowball away from debt paydown to car insurance, as if that was a new goal and I would also had to take from the snowball to restore any dips in the cushion. Then get right back in the saddle and return to paying down debt.
I have this gut feeling like she is hiding something or for some reason, doesn't want it all out in the open. This worries me a bit. Not wanting to talk about money/budgeting... Refusing to make a budget... These feel like red flags. JMHO. I hope I'm wrong.
I have nothing to hide from dh. When our debt was piling up he wasn't asking any questions about money but if he he had, I couldn't lie to him and would have had to show him all of our statements. When I finally added it all up due to my own disgust at the situation, and cried to him how I messed us all up. I felt so bad and thought he would flip out but he just calmly said, Don't worry; we'll get through this. Prior to that he had no interest in how I was handling things. I think if he did, it wouldn't have gotten as bad as it did.
He still has no interest. lol. I continue to update him on future snowball goals just to keep him in the loop.