Not for the Faint of Heart
I’m not sure I would be brave enough to try this one myself, but for those who just can’t stand cold leftovers, there is a way to heat up food without a microwave. Since hotel rooms are equipped with a hairdryer but not a microwave for your pizza, why not use that bad boy for dinner?

This hack makes good use of the iron instead of the ironing board, and can save a cold slice of pizza. Heat from two sides can do the trick, and you never have to endure “eh” leftovers again just because you’re not at home. Might want to sanitize that iron first, though.