I am in the process of finishing our run. It's been slow going because of time limitations and RAIN. I have investigated sand prices and because I have a quarry 3 miles from my house the cost is going to be minimal. The girls have been using the run and the dirt is getting pretty packed down,but kind of slimy because of all the rain. I still have to cover the top with metal or fiberglass, but I doubt I'll get to enclose it with plastic before winter. The run is about 14x8. I love the idea of sand,but with the run being so damp right now and it probably isn't going to dry out anytime soon- rain again today, I'm thinking of using something else for winter. Also i noticed a bit of a smell yesterday. Soooo.. what can I use for winter and then easily clean it out and get ready for gravel and sand in the spring. Would cypress mulch be an option? Maybe about 20 bags with lime or DE and turn it periodically. It's pretty cheap at the garden store. or maybe go ahead and use gravel? I can get that at the quarry too. I read the muddy run thread so I know I shouldn't put sand on a wet run. I'm in Ohio. What would you do? I need to do something and soon because of the smell.