Buzz·Posted on Jun 30, 2015What Genius Hack Should Every Teacher Know?Help other teachers save time and money.by Spencer AlthouseBuzzFeed StaffFacebookPinterestTwitterMailLink Everyone knows that being a teacher can be an extremely difficult job. Tap to play GIF Tap to play GIF Buena Vista Pictures But some teachers have tricks and tips that make their jobs just a little bit easier. Tap to play GIF Tap to play GIF Warner Bros. Maybe you saved money by replacing bulletin board backgrounds with plastic tablecloths. samandscout.com Submitted by witzelsuchty Or maybe your Open House hack involves a handy QR code so parents can get your contact info easily. Flickr / Creative Commons / Flickr: eepaul Submitted by onwiththeshow Or perhaps you have a totally different hack that keeps students quiet and attentive during class! Tap to play GIF Tap to play GIF MTV Films Everyone wants to save time and money, so tell us in the comments below your best teaching hack! Tap to play GIF Tap to play GIF ABC The best responses will be featured in a future BuzzFeed Community post!