Records to Keep. I need recommendations.

I'm asking for recommendations on what records to keep, how, and why.

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I'm talking about repair you do to the house, especially major such as HVAC, roof, windows, large ticket items etc.

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How do you keep track of them? Binder, file? Electronic? Do you keep the receipts, or do you just record the dates?

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I bought a house May of last year and I did so much work on it that it has been a lot of chaos. I'm ready to dig up all the things and organize.

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What is actually worth keeping a record of?

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Thanks