+1 on the fog light covers.You can do it without removing the bumper, it's just a bit fiddly. Underneath there are holes in the under tray that give access to nuts which can be turned using a socket with a long accessory bar fitted. It may take longer than 15 mins though. You have to be careful not to lose the nuts inside the tray as well, although they can be recovered by either manipulation (bumping them back to the hole) or dropping a corner of the tray.
Something to beware though with removing the bumper, it depends on which model of Civic you have. The Type S has far more pieces to remove than the standard car.
I replaced the nearside fog on my Type S entirely through the tray with the bumper on.
Finally, look at Wanners Fog Light Covers, without these you'll find yourself replacing fog lights more frequently that you might like as they're particularly vulnerable.