You have the ring on....now it won't come off!!

As a nearlywed with a ring that is just about a size too big, there has been much discussion about what size to get it cut down to. Its a 3 3/4 (that's what I was originally measured for) and its huge! Nola of Doubet Jewelers in Wilmington, DE (where we got the ring) recommends cutting it down to an even size 3. My concern is what to do on days that my fingers swell?? (which often happens due to humidity.) Her comment was "Well you just won't take it off that day!" Of course, I panicked, thinking what if my finger swells so much that it gets stuck and for some reason I need to take it off - like I want to work out, garden, etc. She had a great tip for this - Windex!! So, in doing a little research about what to do when a ring gets stuck, I found this great post in Wiki-How. They offer many ideas including window cleaner, dental floss, cooking shortening, among others. Have this problem too? What's your favorite solution?