There is nothing specific that I need
My first thought on advice might be catch a show, see the lights, a good meal.
If you don't "need" it, don't buy it.
"Browsing" is for Ladies looking for something they're not sure they want, reasonably certain they don't need, but have a compulsion to test the credit card limit (My apologies if you fit into this scenario, other advice might be useful, but I know it would be ignored).
Think about what you "Need" to add to your Kit, research it before leaving, go to the particular shop that has that particular item that you "need", treat the whole situation as a planned mission (have a back up plan), wear blinkers or at least dark glasses, complete the mission, go home & enjoy.
If you choose to ignore this advice, revert to the afore mentioned back up plan, a large limit on your credit card, Good Luck, not likely but always welcome.