Next Day Payment: When you sell on Decluttr, you receive payment within 24 hours after the sale completes and the item arrives at the new owner’s address. That’s substantially faster than many online consignment platforms, which tend to have more flexible payment terms. And it’s much more predictable than auction sites or venues for third party sellers (including Amazon), which typically allow buyers and sellers to work out their own payment arrangements.
Having your own site to sell gently used handbags is probably going to be a really, really difficult endeavor for what its worth. It will be hard to get enough eyeballs/visitors on those bags to generate enough sales to make you any meaningful income (it’s an incredibly small niche and almost too specific in nature). Not to deter you from the idea completely but you’ll need to commit to several years of patience to really hit a home run in that field.

Regardless if you need to earn some fast cash or we're just talking about making money in the grand scheme of things, there's an important psychology that needs to be mentioned before getting into the strategies. If you study Freud's model of the mind, you'll discover the Psychic Apparatus. It's the three-part construct in your mind that controls all of your behavior.