Possibly the best option for someone to make money without spending money is signature campaigns in bitcointalk. You can join in with your twitter and with your bitcointalk account and even facebook and medium and instagram as well. The last ones are rare but the twitter and specially the forum account is very vital. If you have a twitter with many followers than you can make some money with it, not a constant stream of income but definitely enough to pool it with other stuff.

Also if you have a legendary account or anything decent you can join into a new signature campaign and just keep on writing like you normally would. Signature campaigns are really hard to convince these days, you can write like a sentence for a response and they will disqualify you. You need to write coherent decent stuff otherwise they won't count it. However no matter what it is still almost free money if you love writing on this forum.