For those who have shopped at B&H and found it overwhelming, consider stopping by Adorama. The store doesn't offer the same range of products as B&H but if you're in the market for photography supplies, chances are they'll be able to handle the vast majority of your needs. The small, cramped store is easy to navigate and the most common purchases (chemicals, paper, inkjet paper, etc) can be grabbed off the shelf. The prices may be slightly higher than B&H but for film it may be about a dime per roll of film.
Where I feel the store shines is the used department which is well stocked and features very friendly staff. I have bought and sold equipment several times from Adorama and have only had positive experiences. Check their website before showing up to save some time.
As with B&H the store does close for sabbath (Friday afternoon and all day Saturday) and all Jewish holidays so keep this in mind when planning your trip.
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