Played around a little bit with the console last night (nothing major, just little things like adding gold and a weapon), but I'm new to it as this is my first TES game for PC.
I looked around the UESP wiki to see if there was a command just to increase carry weight, but I didn't spot anything.... do you have to up your strength to get that effect? If that's the case I'll just leave well enough alone, because I'd rather level up organically, since this is only my first character ever in MW.
Just thought I'd check with the pro's!