Some of the really fancy sewers I know actually have ideas about the patterns and material that they own. They take photos of the pattern by the material and make a list. I thought that sounded like a good idea so I started. First I had to drag my patterns up from the floor below because they hadn't moved to the new sewing spot post move. Then I decided to sort them into piles by type of clothing - tops, bottoms, dresses etc.
The piles toppled over so I had to start again. I resorted the dresses into woven and knit and that helped.
I discovered my fear of making knit tops and trousers had resulted in me trying to find the perfect pattern (all without actually making any trousers). I think at 10 trouser patterns I should be fine. I should point out that the excess of patterns was not helped by the recent closure of a favourite sewing shop, selling off patterns for $3.50 each.