88 household individuals were split into three groups and  asked to either wear a badge supporting a  charity, asked to wear one along with another family member or not to wear at all. That same evening, all groups were then asked for a financial donation to the charity.

Those who were first asked the small request were far more likely to go on and donate money than those who weren’t.

Start with a question promoting reflection on one’s values. Their answers will create a desire to be consistent with their beliefs.

Have people perform a small related action. e.g. People who put a small “Drive carefully” sign in their window are more likely to follow the instruction than those who merely say they will. Frame it as a social norm.

Prime the ‘helpful’, ‘cooperative’ ‘supporter’ with positive feedback prior to a future request. 

Make the target request a continuation of the initial one. The more similar the activity, the greater success. Also balance your request sizes. If the initial request is too big, people won’t do it, never getting to the target request. But too-small tasks will widen the gulf between the two.

Almost anything can be collected, but to promote collectibility of your products, you should release them in identifiable sets (Carey, 2008). Use names, symbols or colors to connect products. Even subtle additions like a numbering system can turn a mere range of products into a collection.

Self-identity is a primary motive for collecting (Smith et al., 2008), so creating distinction through scarcity (“I have this but you don’t”) is key to increasing consumer status.  Hold back or stop supply of certain items to create a secondary market. 

Create a community to foster social value of your collection. This provides social acceptance - one of the core reasons people collect (McIntosh and Schmeichel, 2004). Social also heightens resell value.

Release collectibles in waves over time (Bianchi, 1998). This will increase the overall enjoyment of the experience and increase the desire to collect. Never saturate the market with too many sets, variations within sets or too many limited editions (Hood, 2006). Overproduction will kill the magic and therefore consumers’ ongoing desire to collect. Don't make the pursuit too easy to achieve (Csikszentmihalyi, 1990), but also not so large a task as to be out of the reach of your audience (McIntosh and Schmeichel, 2004).