The tools in the shop come of hooks on the wall and the chits are on small rings. If you just hung the chits on the hooks you took the corresponding tools from, you'd know who had the tool. No need to write down names (but you could do that anyway to double-check). SO why doesn't Luschek use this method?
If you watch closely, it's actually Luschek the shop manager who gives Chapman the screwdriver at the beginning of day without giving her a chit. Even if Watson had written down all of the day's transactions, Chapman's screwdriver would still have gone missing.
Red's seemingly throwaway line in Season 1 about all the black girls being on heroin makes a lot more sense when it is revealed that Vee is smuggling heroin into the prison, and probably had been doing the same during her previous prison stay.
Morello helps Piper deal with the racial segregation by telling her to "pretend it's the fifties." Her accent, hairstyle, make-up, and general outlook on life such as wanting to settle down and be a housewife are slightly old fashioned, reminiscent of the fifties. This fits with her delusional disorder to the point where she may actually be trying to convince herself that she lives in the fifties and her attitudes like perpetuating racism may be part of the act.
More specifically, Morello wants to live in the world created in West Side Story, which is Romeo and Juliet (another creepy, obsessive, stalker-ish love story) set in the 1950s/early 1960s depending on the production. Race and class attitudes are heavy themes in both plays.
Knowing what we know about Lorna's actual relationship with Christopher makes one wonder if Nicky is entirely safe maintaining an on-again, off-again romance with her.
Vee could have just been at the adoption fair because it was a usual collection spot for her. However, why go on a day where there would be heightened attention? She was likely there specifically to recruit children to her operation.
Of course she was. Specifically the children no one was going to adopt—who would be even more vulnerable after having been rejected multiple times.