My personal management style is to avoid being a hoarder. It can be a challenge, but really most of this stuff doesn't need to be kept long-term.
The main threat model these days is digital, rather than physical. I favor paper records, in a folder by tax year (sorted by month). The iPhone Notes app has a really good document scanner built in, if you need a digital copy you can create it, then delete it. For the house I have a house folder, for the car I have a car folder. I just pay cash for cars, so that really cuts down on documents needed (this kind of thing should be part of your decision-making process!).
> For the house I have a house folder, for the car I have a car folder.
I found that such an approach doesn't work for me. I currently own two cars but in the past I have owned over ten cars in my life. I keep purchase and sale documents for each car in a separate folder until no longer needed. I keep maintenance records in their own separate folders. When I sell a car I no longer need, I pass the maintenance records on to the buyer, and I easily locate the title to sign over in the purchase/sale folder from last time. Having these together wouldn't make sense because purchase/sale is a one-time event whereas maintenance happens all the time. For example, to answer the question should I accept my mechanics' recommendation to replace some given part, I review the documents and show them that they already replaced it last year, so they better have a really good reason why it needs replaced again this year.
Finally, there are other records related to cars such as insurance documents. These I just keep for one year only so having them separate in their own folder is a better idea to make it easy to prune out the old/no-longer-necessary documents.
The main threat model these days is digital, rather than physical. I favor paper records, in a folder by tax year (sorted by month). The iPhone Notes app has a really good document scanner built in, if you need a digital copy you can create it, then delete it. For the house I have a house folder, for the car I have a car folder. I just pay cash for cars, so that really cuts down on documents needed (this kind of thing should be part of your decision-making process!).