A food sealer would be the best option for you. There are lots of varieties. Prices range from $20 to over $100. Here is link comparing different food sealers. There are lots of different models listed.http://shopcompare.net/products/q-Vacuum-Sealer/page-1/ The brand you want all depends on what you will use it for. If this is for a business I would recommend investing in a higher quality sealer. If this is for casual use then maybe a lower end one would be best.
You can find food packaging supplies at almost every food store and other stores who are useful like Canadian Tire, Walmart, Costco Wholesale or any other place that sells food or home stuff.
Standardized blister packaging for moving can be found from your local moving supplies or cargo van rental companies. Custom packaging can be ordered online based on your size requirements.
Food packaging equipment can be purchased at nearly every food store/grocery store available today. They are also common in Dollar Stores, but with lower quality. It is not advised to purchase these perishable products online.
One can purchase food that is kosher at bakeries that are supervised by rabbis. This will ensure that the food is in fact genuinely kosher. Also, some foods may carry a "hekhsher" symbol on the packaging. If the symbol is on the packaging, the food is kosher.
Clamshell packaging can be bought from QPC Packing Supplies, Quality Packaging Canada, Formco Plastics, James Packaging, Bell Plastiform industries and Dordon.
One can purchase tanning bed supplies from a number of stores. One can purchase the supplies from Sam's Club, Target, Sears, eBay, ProSun, and Wayfair.
One can purchase greenhouse supplies from a variety of different retailers. One can purchase greenhouse supplies from websites such as FarmTek, Greenhouse Megastore, and Hummert International.
One can purchase pharmaceutical packaging equipment directly from manufacturers such as Busch Machinery. One may also be able to purchase such equipment from online mega-retailers such as Amazon and eBay.
One can purchase supplies to make a plastic lanyard online through sites such as lanyardstore. One may also be able to purchase these supplies locally in shops.
There are a few places where one can purchase EMS supplies if needed. Buy EMP, Galls, and Chief Supply are websites that all have EMS supplies available for purchase.
There are many places one can purchase packing equipment. One can purchase them online from Actionpaq or Packaging Equipment Sales or Can-Am Packaging Equipment or Used Blueberry Equipment.com .
One might purchase household supplies in stores like HomeDepot or WalMart. One can also purchase household supplies on the web in places like Amazon, DollarTree, Tmart or CVS.
UPS will sell you packaging supplies through their retail UPS Stores. They don't make these things as they are quite busy being one of the world's largest commercial enterprises.