During my instrument course, I did a lot of VOR hold's, DME arcs, and instrument approaches on Flight Simulator X with my Jepp charts. I would set the visibility to zero, load up a default 172 on autopilot and just practice the things by flying with the mouse and referencing my charts. I found it a lot easier to practice this in my own time then to wait and do it in an airplane with everything else going on.

Depending on whether or not your airplane has a GPS and it is a Garmin, Garmin has GPS simulators for download on their site. This helped me practice using the GPS at home becoming more proficient at entering/deleting waypoints, selecting procedures, etc.

Just a couple of the things I did...

Have fun!