1. Band-Aids
Before the Band-Aid was invented, do you know what we used to cover our boo boos? PLASTER. Oh yeah. The same stuff we now use to patch holes in walls was lovingly wrapped around our finger to stem the flow of flood. I can't imagine much air got in there and it probably smelled nasty. How many times have you needed a Band-Aid and one couldn't be found? So there you are, stuck somewhere with a bloody knuckle, knee, etc. and are dying for one. You can thank whoever invented this awesome thing because without it, our cuts would be covered with a lot less sterility.

2. Staple Remover
I add this to the list because I literally just used one. Ever had to remove a staple without one? It kills your nails and can take forever if you are working with a thick stack of papers or an industrial-strength staple. Trust me, every office should have one.
3. Post-Its
Paperclips work when you want to temporarily attach one paper to another, but they fail to exude the urgency that a Post-It Note does. Also, you can't paperclip a note to the bathroom mirror to remind yourself to run to the pharmacy after work. They can stick anywhere (if you buy the real Post-Its and not the knockoff brands) and they have a ton of cool colors. Like I said earlier, they declare a sense of urgency or need of attention that a plain white piece of paper doesn't. What says "LOOK AT ME!" like a bright pink piece of paper...possibly shaped like a butterfly?
4. Anti-bacterial Hand Gel
Kills germs=genius. Only downside I know of is super germs can develop because they become accustomed to the hand gel...I don't know...I just know that it's awesome and smells yummy.
5. Buttons
Before zippers and Velcro, there were buttons. I have no idea how long ago they were invented, but without them we would be holding our pants up with rope like the Beverly Hillbillies.
