Depending on your team's recourses, you might want to consider building and actual frame for your pit. This should take as little time to setup as possible and should take up as little space in your pit as possible. This is nice to help the image of the pit but it does very little to improve the safety or efficiency of you pit area. Our team has a very nice pit frame, we should have a design up on our website,
core2062.com soon.
What any team can do to improve their pit is to set standards for organizing and maintaining your pit. Something that's very helpful is to install foam flooring in your pit, this is less slick than the concrete that's usually at the venue and makes standing and kneeling much easier, make sure to sweep this floor regularily. Another thing that is very helpful is to plan where items will be stored in the pit and to mark this on the pit floor. It's also very helpful to develop a system of how and where you will charge batteries. Finally, develop a system to control access to the pit, on CORE, we have a chain that goes across our pit when we are doing maintenance on our robot or when our pit is closed. When the chain is across our pit, we either restrict access to FIRST officials or to pit crew members.
The real key to having an efficient pit is to set standards for its organization and upkeep and to have buy in from your pit crew about these standards.