Does your Xbox or PC feel heavier? Could it be because of all the data loaded onto it? Why not, everyone has their doubts and no matter how stupid you should always get them cleared on a public forum.
A hilarious response after the jump

Every Gigabyte counts as 5oz of extra weight for your computer.There has been cases (in computers with 1Tb of Hard drive and more) of people left eMule activated 3 days and when that people returned to the computer,there was a hole in the floor instead.
Maybe you should try a compression software (like 7zip for example) which help reducing the data’s weight.
Take care of those P2P software that quickly increase your data.Watch out and be careful.
Use MS-DOS to drastically reduce data weight.
Greetings from Spain!
[Microsoft via Techeblog]