I feel like Ruben isn't necessarily the bin day guy, he's more the precision logistics of organising a family day out or a party or a holiday. Everyone gets given a role, Ruben's in charge, nothing is ever forgotten. He's got a colour-coded spreadsheet, you consider calling him a nerd but then he takes his shirt off and points out that the efficiency means you've now got some free time...
Gundo is a Swiss army knife of a man. I don't mean he can do anything, I mean he literally will do the things a Swiss army knife does. Whittling, as established. Fixing broken things. Getting stones out of horses' hooves. Opening the wine.
Kev will run you a bath and take the kids to McDonald's and you will be pathetically grateful.