Step 1: Start with clean and fresh nails, remove excess nail polish, trim and file your nails to desired length
Heres a before picture of just plain fingertips. They're just quite boring!
Step 2: Apply two coats of clear top coat nail polish. It takes maybe 2 minutes to fully add both coats because top coats dry pretty quickly.
And presto! You have clean and professional nails in 5 minutes or less. You can do it during a lunch break or just before you rush out to class. You don't have to wait around for your nail polish to dry, it's something you can just run out the door with! It's also handy for if your lifestyle does not support having lacquered fingernails such as if your occupation requires too much physical work, or if you play sports everyday. I personally wash my hands probably 20+ a day (I don't know why...), so my nail polish chips after 1 day. Instead, sometimes I just use this trick.
Give it a try! Hope this helps you.