Changing your needle is a something we ought to do frequently and I can easily forget when I last transformed it. Presently I have a Post-it note on the back of my machine with the date of the last time I changed the needle!
I have recommendation for you hopefully you might find useful. It is one of the most useful things i have encountered recently. It is a kind of holder which prevents detergent leakages, which used to be a big mess .. you can see this gadget here