Anyone who spends hours browsing the internet has probably been tempted to stock up on trendy beauty buys like Pokémon makeup brushes or a foaming bubble sheet mask or two. Considering the bevy of alluring — or outrageous, depending on your level of beauty fandom — new products saturating the market, it's easy to overlook the beauty hacks that only involve humble household items. As it turns out, one of the most effective and easy beauty tools is already hanging out in your desk drawer, just waiting to come play in your makeup bag. Yep, that unsuspecting roll of scotch tape isn't just good for the construction paper projects our moms have been saving for two decades. It's also a cheap way to perfect your cat-eye flicks, keep your eye shadow lines clean, and experiment with some fun DIY nail art.