Work trips tend to involve enough scheduling already, so I prefer dealing with travel paperwork before the calendar gets too crowded. If Russia is the destination, checking the visa information that corresponds with a business visit can be a useful part of the early planning stage. The Russia Business eVisa page focuses on information for business related travel to Russia. I would go through the details alongside my meeting dates and planned itinerary, rather than leaving everything until just before departure. Once the travel arrangements are in place, there is less distraction and more time to concentrate on meetings, appointments, and the actual purpose of the trip.