Stato. Same here. The scheme we did have in place was one being run by an employee in his own time. The company provided separate swingbins labelled appropriately (cans, bottles etc.) and my colleague used to take them to the recycling point on his walk home from work.
Since the local council has now removed this facility (all homes now have individual bins, therefore a central drop off point is not required); my colleague can no longer do this. Another colleague with access to a car volunteered to continue the scheme, but it has fallen on deaf ears.
Stravaiger. I'll look into the uplift thing. Persuading people to separate their waste isn't a problem, they've been doing it since 2001.
Mountaincarrot. You may be right, but given their management style we'd rather use that as a last resort.