I don't worry about keeping track of everything. Instead I surround myself (literally physically) with all the non-fiction books I buy and leaf through them whe

I don't worry about keeping track of everything. Instead I surround myself (literally physically) with all the non-fiction books I buy and leaf through them when I get bored or need new ideas. I still buy Kindle books but anything I really want to learn and need to be enveloped by (recently was statistics/machine learning) I buy physical books and add bookshelves to my home.