Reapair or replace moulding?

[Nick Bleser]

I'm turning over an apartment next month and am wondering what owners do about scratched and worn moulding besides paint. This 8 unit property is new to us and this will be our second turnover. The first apartment we repaired we updated almost everything except the moulding and flooring. The next unit we will have to replace carpet and I'd like to clean up the moulding but hope not to replace. 

Does anyone have a good solution to clean it up?

Thanks BP Community!