how do you deal with heavy power cords?


I have some very heavy power cords that won't stay in a wall socket correctly, the weight pulls them down too much. It's even a problem in the IEC receptacle on the back of seveal components (I have used a foam support underneath, but that is suboptimal for obvious reasons). Has anyone developed a clamp or other kluge to hold these things in a socket? Is the only real solution to find lighter cords (and reasonable flexibility would be nice too!).
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Put a cable tie (that has an added eyelet) around the power cord and then affix a hook to a nearby surface and hang the cable from it. You can also double them up and attach them to a chassis screw or around the feet of your amp and other component

http://www.cabletiesplus.com/Products/5-Mounted-Head-Cable-Ties-(40-lb)-(Natural)__CP-5-40MH-N.aspx
thanks! I bookmarked the links and will try all these suggestions until I find one that works for me. The buypowergear clamps look interesting.
For the Wall receptacle side, I put a small nail-in picture frame hanger into the wall above the outlet plate. I plug the PC into the outlet, loop a length of monofilament around the PC, loop it over the hook on the hangar, snug it up and tie it off. Works like a charm on my very stiff and heavy power amp power cables.
oyaide receptacles!!!

http://forum.audiogon.com/cgi-bin/fr.pl?htech&1209114895&read
This is also a problem should you use iso/vibration devices as the torque from heavy cords negates their benefit.

I finally switched to Morrow Audio MAP-2 power cords (light weight and flexible) and am very happy