White boarding. We had them everywhere and used them often. The big ones in conference rooms were good and pretty standard, but the tiny ones placed near the actual desks for just quick and slipshod thinking out loud type stuff is what I miss most. For the big group type things I find myself often just pre-diagramming things which is way less efficient, but works as I'd probably be the one drawing anyway.

And part of the problem is that I know there are tools and we've kinda sorta used them every now and then, but at my company at least we don't have a solid broadly used solution. It might be the part mentioned by others about the ever looming "return to office" plans that have lead to it being punted constantly rather than properly addressing the need some way. Part of me hopes that there can be some moment where remote is just accepted and we can take steps to making it work as well as possible (with things like tablets with a stylus distributed) rather than just carrying on in limbo.

So I guess broadly the hardest thing is about how we're still, nearly 2 years later, in a nonideal one foot in, one foot out approach to remote working.