10pcs CR2032 Button Battery Holder 2 Pin DIP Coin Cell Battery Socket

Replace your clock battery with a battery holder so you can use off the shelf CR2032 batteries instead of having to buy tabbed batteries (of which tend to be pretty questionable in quality, especially the unbranded yellow-jacketed ones). I find these ones to fit the best out of the ones I've personally installed, assuming you decide to do it yourself.