Never tried sharpening them myself, always used a service as standard jobber bits are less than a pound to get done for you. I normally save up a bunch of stuff including saw blades and get them done at once to save on shipping at hit the low volume discounts.
However, its only worth doing on quality components, I wouldn’t pay a pound or waste my own time to get a cheap ass drill bit sharpened, I would just replace it.
My saw blades start at like £70 so paying £12 to get it sharpened is good value, but a £30 blade is not really worth it, not least for which it won’t cut anywhere near as much material before getting blunt between sharpens. Same logic for drill bills, some of my SDS ones are over £30 each, my augur bits can be over £50 each, so those are worth looking after, not going to bother for a set of 10 bits for £20.
I have a few that will be very close as I decided a bit over a decade ago to limit myself to one rewatch a year of each to stop myself sucking all the joy out of them:
Alien - my favorite survival horror
Aliens - my favorite Nam movie
Jaws - my favorite version of Moby Dick, although I really like Godzilla Minus One take on Jaws
Jurassic Park - best big stompy monster film for me
Lord of the Rings - this is always over Christmas. Its not faithful enough for me to the books but it still manages to be an outstanding Trilogy.
Emperors New Groove - favorite body swap film