What do I do when I want to wear my cute flat sandals and all of my cute jeans are too long? Sure, I could have them hemmed or just buy shorter pairs of jeans just to wear with flat shoes, but I just want a temporary fix. I use an iron-on adhesive like Heat n Bond. Done and done. There are some companies out there trying to sell you "hemming" strips for your jeans, but why pay between $10-$20 when you can just buy a roll of adhesive for under $3? Exactly.
***update*** Okay, the adhesive tape that I have is not this one. I bought mine from Walmart and I thought it was this one because the packaging looked familiar (I threw the package away). You may want to look out for some that say "temporary bond/hold" if you're concerned about whether the bond is going to be permanent or not. The kind that I have survives washing and drying, and I don't have trouble taking apart the bond, but it does leave a residue on it. Just some stuff to look out for if you're going to temporarily hem your jeans/pants using this tape. My apologies.