As a detective, the crossword clue ‘Plastic conveniences‘ required some quick thinking and logical deduction. I considered common plastic items such as bags or containers but they didn’t fit the six-letter requirement. Looking at the clue again, I realized that the word “conveniences” might imply something that makes life easier or more convenient, and then it clicked: plastic ATM cards! These cards have become ubiquitous in our daily lives, making financial transactions a lot easier and more convenient. ATM cards are made from plastic and they fit the six-letter requirement. Of course, I was proud of my deduction skills and felt satisfied with myself for cracking this crossword clue. The answer, ‘ATMCARDS‘, was right in front of me all along!