Clean up your inbox by using the free website https:// unroll.me/ - it will show you all the sites you subscribe to, so you can easily unsubscribe from any that annoy you. Use your credit card rather than your debit card to pay, and if your products don’t arrive it’s much easier to get a refund, as your card company is liable. Clear your cookies and cache (a record of where you’ve been online), particularly if you’ve been comparing flights or hotel stays online. Often search engines record what you’ve been looking for, then retailers raise their prices once they know you’re interested. Clearing these is usually straightforward, but the method depends on which internet browser you use. A Google search will help you find instructions.