Some random tips I've found.
#1 Put the tip of the pencil near a flame for about 30 seconds and let it cool for 15 minutes or so. It will now give you a thick and intense line, the way any gel liner would :wow:

#2 After applying lipstick, put a tissue paper over your lips and apply powder over it. This will set the colour and give you a long lasting effect.

#3 Fill a bowl with cold water. Apply your nail colour and dip your fingers in the bowl. It speeds up the drying process.

#4  To stop hair grips sliding out your hair, simply lay a tissue paper on a table put the grips on it and spray them with any stiff hold hairspray. This will make them stay on your hair longer and stop them from sliding out every other minute.

#5 Dry shampoo is the best way to fix greasy hair when you can't wash your hair. But if for some reason, you can't find one, then use baby powder as it does exactly the same thing. Put some powder on your hairline and rub it in. It will take the greasiness away and make your hair look good.

#6 If you can't get make up wipes, simply use baby wipes- they are more readily available and do the job- being kinder to your skin too!

#7 Braid your hair on both sides really tight and go to bed. When you wake up, untangle them, spray and scrunch it and you'll be left with perfect beach waves without using a curling iron

#8 Use a credit card behind your lashes while applying mascara. It not only straightens out your lashes, but also stops the mascara from smudging on your eyelids.

SHARE YOUR IDEAS TOO GUYS AND GIRLS..
Although I assume it'd be mainly girls..

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Oh, to make your hair look thicker asap, brush a little eyeshadow on your parting