1. Don't carried by popular opinion. It may look great on others and is selling for 6 x retail on ebay but LEAVE IT. That includes EVERYTHING
2. Don't buy any second choices. Phw but not ghw, Rouge H but not RC

You will still want what you wanted in the first place.
3. Forgive yourself the odd nonsense purchase (for me Paddock Flots because I only have one H bag it works with). Guilt and returns only lead to more spending. Find a way to
make it work . Selling is actually too easy. This rule teaches how much effort is required to make things work and to not repeat.
4. Don't buy something you can't afford. Ever.
5. Trying on doesn't cost anything but once you've tried on you may well be calling a boat for Ban Island. Stick to your wishlist. Everything looks and feels good in H but you can't have everything.
6. Don't pop in 'on the way' to anywhere. No wishlist, no H visit. No time to consider. No H visit.
7. Don't go to H when you are feeling down if retail therapy is your thing. Getting carried away in H is going to do a lot more damage than going, erm, well anywhere.
8. Off-wishlist. If you want an H souvenir/birthday treat/gift for self etc, a keep sake to mark something stick to the
one thing. It will make it even more precious.
9. Can't choose between a cw? Ask you SA to hold them both for an hour. Have lunch or a sit in the park to consider and come back. H doesn't do 2 for 1 offers so why buy both when you only wanted one. (I seem have doubles of everything but then I'm obsessively symmetrical - my excuse).
10. Love and use what you've got already. It's surprising how many things we love too much to use or even forget what we have.