When at the grocery next I found a large bag of garlic heads - about 25 or so for a very reasonable price. The most time consuming part of this process was certainly peeling each glove, but I did find I got into a bit of a grove. Plus, though I'm not going to go into the exact science of peeling garlic as everyone has their own "system", crushing the cloves slightly with the back of a large chef's knife did help to dislodge the skins, and the fact I bruised the cloves was a non-issue as they where going right into the processor anyway. Once I was done I was able to whiz all my efforts into one large batch of grated garlic. From there, onto the cookie sheet in mounds about the size of one heaping teaspoon (I figure about 2 gloves worth), and into the freezer for a quick freeze before loading into resealable plastic bags.
And voila! Now, when I need a couple of gloves of garlic, there they are, in the freezer, ready to be popped into sauces or soups, stir-frys or curries. I love it. I did the exact same thing the next day with ginger which was a little less time consuming, thanks to the fact that ginger doesn't come in cloves! Yes, getting them in the freezer takes a little time, but it's worth it in my opinion. It's cheaper than buying that pre-grated stuff in the grocery stores (not to mention what do they put in it to make it last so long?), yet you still get the convenience of grated garlic right at your fingertips - especially on those weeknights when even peeling 2 or 3 gloves of garlic seems too daunting and not worth the effort!