I still book my AA travel on the web and give the locator number to the travel dept. I get the web bonus and the lower corporate rate. Win - win on that one.
One of the many odd things I find about our policy is that they will not reimburse me for the use of a gym while on the road, about $10. But they will reimbuse beef, booze and buttercream desserts. I still elect to work out and eat a healthy dinner. My only incentive is that I will live long enough to collect on my 401k.
Also, no reimbursement for in room movies. But some of my co-workers have gone to dinner at a 'club' with 'entertainment' if you catch my drift. That was reimbursed.