I am allergic to the possibility of losing something in the tickler. I did this-- an important certificate that had to be renewed but came months before it could be executed and a graduation checklist that that had tasks on it that were spread out over 6 months. What if you need the item but can't remember what month it is in, well that is not so bad because at worst you have 30 day folders to look through plus 11 monthly folders. But what if you have no recollection of having put it in the tickler at at all and that one piece of paper is your only cue. So you might want to put a note in the folder where you have the items related to the purchase that says "warrantee in tickler June 2012". Using the tickler for theatre tickets works well when you also have the theatre performances on your calendar.
Some people use a tickler that is just folders and others use cards with information and notes on them that pass through a system of dividers. This is great for recurring items.
If you don't have a lot of stuff, you could clip it to a paper calendar such as the kind you might use on the refrigerator.
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