dryer lint, dust bunnies, dirt from sweeping, coffee grounds (where I work i can get about 2gallons of grounds a day thats brewed.), shit ton of food scraps meat and dairy can attracted unwanted attention big reason its a no no, shredded paper and cardboard (another thing i can get from my job by the buttload), egg shells, just found out you could put latex but I would try this to see how long it takes to degrade since once again i can get this shit by the ton, nail clippings theres tons of list on the web