If you appreciate having information on your speed while you are flying - and who doesn't? - it’s generally a good idea to take the cover off your pitot tube. It’s also generally a good idea to own a pitot tube cover that screams to get your attention before you take off.
Fortunately for you, we sell two kinds of pitot tube covers as well as sight covers. One is bright red and the other is a reflective, neon yellow. Each tells you very specifically to “Remove Before Flight,” just so that there is no confusion.