In one of the later betas Combine added a “disposeBag” mechanism with a type-erased AnyCancellable that automatically deinits.

var subscriptions = Set<AnyCancellable>()
somePublisher
    .sink(receiveValue: { data in
        ...
    })
    .store(in: &subscriptions)

Builder mechanism is nice, though. Could add it as an extension to Set where type is AnyCancellable.

Though, come to think of it…

subscriptions.formUnion([
    p.sink(receiveValue: { print($0) }),
    p.sink(receiveValue: { print($0) })
])

Appreciated the link back, btw.