Using a tip for another forum, I make use of a repurposed hard drive magnet. This small magnet is stuck near the crown / dome of the oil filter. The magnet is transferred to the new filter, once the old filter is removed, thereby ensuring that any metal filings etc caught up by the magnet, remains in the removed oil filter. Easy to spot, if the magnet has not been transferred.
By and by, something else that I do, besides making a note in the service book, is to scratch the mileage of the oil change on the filter. Makes things so much easier than having to first look up the info, when doing a pre-ride inspection.