Signature campaign is always an option when earning money. You get paid weekly in signature campaign in most cases. Reaching the maximum post count per week would make you have a steady income. Although the earnings from signature campaign wouldn't be able to feed you for a week, it's really helpful. You should look for another source of income and do signature campaign once you get home.
earnings from signature campaigns should at all times be seen as a bonus, and not as something that is part of your total income. because if you depend too much on the income generated through signature campaigns, and they at some point will stop, then there is a gap you need to fill. if you see it as a bonus, and the signsture campaigns stop for whatever reason, then nothing happens.
Yeah and no one knows how long they will survive and keep paying their users, so its better to have alternate of earning bitcoins so even signature campaign disappears it won't affect us much.
If mining is affordable to you then you can go for it, but my first choice would be to invest in altcoins so that I would be able to make some quick profits in quick time.
