Meds: not all generics are the same. I use generic for as many as I can (I am only on two, thank goodness), but the generic for my thyroid condition is *not* the same as the brand-name I need to use. The generic is for Snythyroid, which contains no t3. I need to use an Armor-type, which does contain t3, because it's actually my adrenal glands that are the problem (it just manifests as hypothyroidism). Insurance does not differentiate between this, and so I have to pay full price for my meds even though the "generic" is not the same and therefore will not work for me. That said, most medications are fine as generics in my experience.
We buy very few processed/convenience foods all around, so usually generics don't come into the picture because of HFCS. In some foods, I'll buy generic, in some I won't. The ones that I won't are usually because they are generics that contain ingredients that I don't like in any products, such as high sodium, processed soy products, or HFCS. I definitely buy generic dry goods if I am not purchasing organic: lentils, beans, grains, flours, etc. If I am not purchasing them local or organic, there is no point paying a mint for them, either. If I am purchasing store cheeses that aren't organic, I'll definitely buy generic. Same is true for condiments (pickles, mustard, etc.). This isn't true for ketchup, because I have yet to find a generic that doesn't contain HFCS.
I buy generic computer paper supplies, but not ink. I'd love to purchase cheap ink, but becasue I print my own business items I need them to look professional and honestly I get far better results with brand name. I do not purchase generic feminine products or TP (ouch!).
"This isn't life in the fast lane, it's life in oncomming traffic." -Terry Pratchett