I recommend http://www.webstaurantstore.com/ as a good place to buy commercial bakery supplies online. They have a very wide selection of restaurant and bakery supplies, and they sell reliable, well-known brands of equipment.
A popular website to buy commercial bakery supplies at affordable pricing is www.bakedeco.com.
You can buy commercial wine making supplies online if the commercial advertising the wine making supplies has it's own website that you can order the supplies from. You can also get most things from Amazon.com.
You can buy building supplies online. You can buy them at www.bestsupply.com or www.commercialbuildingsupplies.com.
Commercial restaurant supplies can be purchased online from a wide variety of places, you can actually check with Walmart.com, Target.com, and places like Amazon.com.
There are many stores online you can buy commercial pool supplies from. Some of these are: commercialpool.com, www.calibex.com/Home-and-Garden, and www.poolsuppliescanada.ca.
Yes! There are several companies that sell commercial car washing supplies online. Supplies sold online include a variety of detergents and waxes and also parts and equipment. Try www.hpws.com and www.sonnysparts.com.
I was able to find several online buisnesses that sell commercial irrigation supplies for cheap. Some of these sites are www.irrigationsupplydepot.com and www.dripworksusa.com/
There are probably plenty of local bakeries that you could purchase supplies from. If you wanted to buy from online you could try www.bakedeco.com/ or cooksdream.com
You can purchase commercial washroom supplies online at Amazon.com, Buy.com or Ebay.com. It would be beneficial online, therefore you can compare prices, read reviews and return your product with no hassle.
From boxes to packing tape, there are many places online to buy your commercial packaging supplies. Try http://www.commercial-bag.com/, http://www.royalmailers.com/ or http://www.packagingsupplies.com.
There are many places online to buy gym supplies. Some of these are: http://www.gymwarehouse.co.uk/ http://www.gymandfitness.com.au/ http://www.profitness-supplies.com/
There are several places online where you can buy beer brewing supplies. If you go to Brew-monkey.com it could even show you stores in your state that would carry the supplies that you may need.