The stuff being picked up at the curb (at least in the last couple of years) almost certainly wasn't being recycled anyway, as recyclables prices got too low for it to be worthwhile. The trucks were dumping your recycling at the landfill anyway, so probably nothing has really changed.
Metals are your low hanging recycling fruit (assuming you've already done all you can to reduce your consumption/need for extra packaging), though, and it might conceivably be a net environmental benefit to save up aluminum and steel items and periodically take them to a recycling center or scrap metal place. If you're driving 30 miles to the county transfer station with 3 pounds of cans, though, you're probably not doing the earth any favors.
Remember that recycling is the LAST of the 3 R's (Reduce, Reuse, and as a last resort, Recycle).
-W