I really enjoy my pbt key caps. Programmers spend all day at the keyboard and the oils from their fingers wear down the key caps and make their keyboards look terrible. PBT feels better and takes longer to break down. You can get a good set for $30. Just make sure the key caps on their keyboards come off.
Logitech also makes some nice wireless mice around $100 that are pretty ergonomic and comfortable to use. Anything to help prevent carpel tunnel is nice.
A lot of programmers really love the jetbrains tool suite, but that's more subscription based.
A lot of free database viewer tools pale in comparison to their paid counterparts. So something in that arena could be nice
Logitech also makes some nice wireless mice around $100 that are pretty ergonomic and comfortable to use. Anything to help prevent carpel tunnel is nice.
A lot of programmers really love the jetbrains tool suite, but that's more subscription based.
A lot of free database viewer tools pale in comparison to their paid counterparts. So something in that arena could be nice