10. That Doesn't Exist Yet?

Some problems are so ordinary, so easily fixable, it's a surprising solutions haven't been invented yet. Here are some simple solutions to even simpler problems, that for some reason have been forgotten in the minds of the great inventors of today.

The Perfect Jar

Double-Sided Jar
You know when you're at the end of a jar of peanut butter, and there's enough left for at least one sandwich, but you can't get the knife all the way to the bottom? Well, here's a ridiculously easy solution. We create jars with lids on both ends. That way, once you can't reach anymore from one direction, you can just flip it over and get the rest! Genius, right?

Prescription 3-D Glasses

These could be 3-D glasses, or
prescription 3-D glasses. Who knows?

Not everyone faces this issue, but I personally can attest to the inconvenience of 3-D movies. I already wear glasses, and then I have to put another pair on to watch the show! It's horribly annoying. Now here we have another chance for life-improvement. They make prescription sunglasses, for people with bad vision who want to shade their eyes. Well, why can't we do the same with 3-D glasses? You could have a pair designed specifically to your prescription, and bring them with you whenever you see a 3-D movie. It sure beats the annoyance of squinting through the whole movie, or the awkwardness of wearing two pairs of glasses.

Boring, non-motorized hammock

Self-Rocking Hammock
Hammocks are great. Have you ever met someone who doesn't like swinging in a nice hammock? I doubt you have. The only difficulty, though, is that you need someone else to push it for you. Sure, you could get some momentum going when you first lay down and try to move and keep it going, but we all know that doesn't really work. So why not make a hammock that rocks itself? They've already invented one for babies; why not for adults? It'd be a really simple process really, just taking the motorized pieces you'd use in an oscillating fan, reinforce them so they're strong enough to hold the weight of a couple people, and strap it to a piece of fabric. Viola! The perfect, self-swinging seat for anyone who wants it.

Commercial Alert
One of the most annoying things in our privileged, first world country, is commercials. Don't you just hate tuning into a channel and seeing nothing but an ad for Pajama Jeans? Wouldn't it be so much easier to know which channels are playing commercials and which the actual program? This is the beauty of Commercial Alert, a program that should have hit stores as soon as TV Guides came out. With Commercial Alert, the guide on your television screen would tell you what each channel was on, commercial or program. It's perfect for when you're flipping between two shows, or just don't want to watch any pesky adverts. In short, this invention is genius, and I think I'll patent it pretty soon.

If you want to learn about the evolution of 3-D movies, click here. Or, if you're riveted by hammocks' influence on society, the History channel (website) has a fascinating article.