I know this has been discussed before. I did a search....but..... My boyfriend just bought me the Tivoli PM for Christmas!!! I love it!!! However, the zipper is a little stiff. I feel like I pull so hard that the charm and chain will just come off (yes, I know it wont and it sounds a bit exaggerated, but I dont want to ruin it!!)....anyways many of you have said to use: the lead of a pencil wax paper bee's wax candle wax What was the most effective without ruining the bag? I would really like to hear from people who have tried these things - not just from what they heard. Anyone try any of these on the Tivoli PM specifically? Thanks in advance!