Yes, this is exactly what we do. Since early 2017 DH and I have each gotten $75/ mo of "no questions asked" money. In other words, it is 100% our money and we can't comment on what the other person does with theirs. It's never happened yet, but the only time we'd not get it is in a dire emergency. This has helped us stave off so much of what I call "frantic" spending. Before having this, it sometimes felt like I had to "race" DH to the spending money every month. So if i wanted something I'd hurry up and buy it because
who knew when I'd have the money to again? Now, I know exactly when I will: next budget cycle. it's really helped teach me about saving, too. We did a
Disney cruise in Sept and starting in March i saved all or part of my $75 a month for the trip. I also forwent any major birthday or Christmas gifts that year and instead asked for Disney gift cards. Come the cruise, I had $250 in gift cards and almost $400 in cash to take that was 100% mine. I bought a Dooney bag and a spirit jersey and several other things and didn't bat an eye because I'd saved it all year. If we'd still had all of our money lumped together in a general spending category I couldn't have gotten even a third of what I got because everything would have felt like "ours" and I would have had to justify every purchase to DH.
the whole thing started because DH and I had an argument about computer parts. He's into building his own computer and is always wanting to update this part or that. To him, it's a need: he simply can't fathom having a computer that isn't running optimally, and that's totally understandable: PC gaming is one of his main hobbies and it sucks for him to spend $60 on a game and then not have it look as well as it could. But I, on the other hand, think a computer should be fixed/ upgraded only when it's not working anymore or not able to run current programs. If it can play YouTube/ netflix/hulu, access internet browsing, and has a word processor I'm happy. I didn't think we needed more RAM because the computer did everything I needed it to do. On the other hand, DH probably wouldn't have seen the point in paying $65 for the new in the Box steelbook of Oswald the Lucky Rabbit shorts that arrived in the mail yesterday, and I was more than happy to spend almost all of my month's allowance getting it and cried with joy when I opened it. Each of us having our own money has taught us a lot about saving, and I'm a lot more careful with purchases knowing I have a finite amount that's "mine". There's a lot of things I realized I didn't actually want once I had to spend "my" money on them.