I left my work mouse at the office yesterday and will be WFH most of this week, so once again I'm completely unironically using the IntelliMouse Optical USB and PS/2 Compatible for serious stuff.

It tracks slower than a modern optical, but that can be adjusted in software, and it's got more than enough buttons for what I need day-to-day.

Adopt, don't shop - there's a lovely senior mouse in an op shop near you that will give you boundless love, if only you'll give it a chance. #retrocomputing

@timixretroplays
I keep one of those inside a "In case of emergency... Break glass" type of container.

Ok it's a drawer of used, but still usable mice. Same thing really.

@RyeNCode here's my mouse "drawer". There's some cool stuff here that can't currently be used on modern systems easily or at all - that Mouse Systems beauty in the middle for example uses a different protocol to Microsoft mice of the same era - so a long-term project for me is to get into the details of old PS/2 and serial mice and build an adapter that brings them back to life.