If you need to take a break and have some fun, the Internet Archive has gathered over 900 classic arcade games from the 1970s through the 1990s and made them all playable in your browser.
Games included in the collection range from early black and white games all the way up to 90s staples like Street Fighter II. Other gems include Bionic Commando, Missile Command, Burger Time, Out Run, Dig Dug, Robotron, Frogger, Ghouls and Ghosts and Qbert. The games are emulated in your browser and you can control everything with your keyboard. Just head to the link below, pick your favourite game, and relive some memories.