Scam - free sources of coupons and samples

There are so many coupon and freebie scams out there, how do you know where to find legitimate sources of coupons and samples?

You can try going to coupon and internet forums and groups for ideas (more coming about this in November) to find user-reviewed websites although you should still use some caution there.  You can also go to trusted websites such as walmart.com's in store's now page, sample and information super-site vocalpoint.com and free sample giant startsampling.com  or check out your favorite product's website for savings ideas and free samples.  (Some product websites will require you to join a mailing list).

For online printable coupons, my favorite sites are www.coupons.com, www.smartsource.com, http://www.cellfire.com/ and http://www.redplum.com/.  You can also request coupons from the manufacturer, find them in store coupon displays or locate coupons in store advertisements, local newspaper inserts or mailbox coupon inserts.