For me, an under-the-sink trash can that hands on the cabinet door has been a huge QoL improvement.
A back scratcher.
Much more situational, but our back gate has a padlock that was originally different from our house keys. Kwikset actually sells “programmable” padlocks so now it is the same key as our front door, which makes life a tad easier.
A computer mouse that fits my hands.
Enough phone and laptop chargers to not have to constantly go to another room to grab one.