I am the first to admit I am not very crafty. I can cross stitch and that is about it. But I have read of many people earning hundreds of pounds on sites such as Etsy? How?? Simple
What they are doing is scouring their local charity shops and car boot sales for craft supplies. Complete cross stitch kits are a good one. They are so expensive to buy that you can sell them for a fraction of the price on sites like this and still make a profit.
Say a brand new kit is RRP £15. You pick it up at your local charity shop for £2. You sell it on for £10. Everyone is a winner. The buyer is saving, you are earning. So next time you are out and about keep your eyes peeled.