So do you mean by 'all the garbage you pick up' to mean as one shops and goes abut daily chores or do you mean to actually pick up the rubbish of others?
On either slant, I would be very conscious of recycling everything. We have a very good recycling center near us that can put everything - you name it - into some sort of recycling format.
As a way to challenge myself with a new format on an old hobby, I am preparing to gather old clothes and reuse them as the basis for patchwork but with a difference, putting the final product on canvas. So instead of paint I will use bits of old clothes as the colors. A bit of a challenge as I'm not a very good artist - more of a craft hobbyist. I've re-used egg-boxes, plastic cups etc in all sorts of ways before dumping into the recycling center.
And finally like swb64, I try to buy food that is unwrapped or not too heavily wrapped.