Keeping organised in the garden

I see a lot of threads from people asking for plant IDs as they've forgotten what they bought or what they planted. I thought it might be helpful to have a discussion about how people keep organised and keep track of this sort of thing.
My memory is terrible so whenever I buy a plant I take a photo of it next to the ID tag and another next to the care instructions. I keep all these together in a file on the computer so I can easily refer back to them. I can also add notes to the file name such as see X book page Y or whatever to give me more care instructions. I keep the file backed up so I don't lose anything if the computer dies (again).

Tradition is just peer pressure from dead people
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I do keep the Clematis labels, but in the drawer, with writing of where they’re planted.
I only buy form Morrison, £1,79 and they come with a nice big card label. Can’t lose those😀
There’s always Internet to identify.
Here is an approximation of my notes on planting in the garden.
If you live in Derbyshire, as I do.