How about getting astronomy, space, science, physics periodicals?
Also, I think it's a good idea to divide what we already have into some catergories.
Here's my ideas:
Social:
3. buy books about space and astronomy, give them as gifts
4. join a space society (Planetary Society, National Space Society, Mars Society, etc)
7. take your telescope to public places and let strangers look through it (this is called Sidewalk Astronomy)
14. come out of the closet... admit you're a space fan to your friends and family. You aren't alone.
17. go to a star party
20. attend a Yuri's Night (
http://www.yurisnight.net/), or organize one in your region
21. get involved with World Space Week (
http://www.spaceweek.org)
24. join a space-related discussion forum (and I know just the one)
30. donate your time for a space-related group, help build a rocket ship (
http://www.xprize.org), sign up for the Mars Society's research programs (
http://www.marssociety.org)
49. attend a space conference, and connect with other space enthusiasts
Economical:
1. invest in space-related companies
13. donate your money to space research, universities, space societies - or Universe Today ;-)
16. rich? put down your deposit for an upcoming space tourism flight
19. make a billion dollars in computers and then start a rocket company (
http://www.spacex.com/)
30. donate your time for a space-related group, help build a rocket ship (
http://www.xprize.org), sign up for the Mars Society's research programs (
http://www.marssociety.org)
33. donate your space/astronomy books to your local library
40. don't pay money to name a star or buy land on the moon. Educate people on how it's a scam.
50. buy or build a Ham Radio (
http://www.arrl.org/). Maybe even talk to astronauts.
51. buy some space collectables (
http://www.countdowncreations.com)
Educational:
3. buy books about space and astronomy, give them as gifts
9. watch the Discovery Channel, TLC, PBS. Write thank you letters when they show space-related programs.
12. support your country's space agency (or criticize them, which ever is more productive)
15. make a presentation at your kid's school about something current in space, like the Mars rovers
19. make a billion dollars in computers and then start a rocket company (
http://www.spacex.com/)
21. get involved with World Space Week (
http://www.spaceweek.org)
23. write an op/ed or informational article for your community newspaper
24. join a space-related discussion forum (and I know just the one)
26. go to your local planetarium, science centre or IMAX theatre
31. debunk pseudoscience wherever you find it
32. educate yourself. Get your degree in science, or take some part time astronomy courses over the Internet (
http://astronomy.swin.edu.au/)
35. enjoy some good science fiction
39. get educational material from NASA/ESA (
http://spacelink.msfc.nasa.gov/)
Political:
5. fight for darker skies in your area (
http://www.darksky.org for more details)
8. write your local or national government regarding space issues
12. support your country's space agency (or criticize them, which ever is more productive)
13. donate your money to space research, universities, space societies - or Universe Today ;-)
18. join an astronomical society
19. make a billion dollars in computers and then start a rocket company (
http://www.spacex.com/)
21. get involved with World Space Week (
http://www.spaceweek.org)
37. sign a space petition (save Hubble, etc.)
49. attend a space conference, and connect with other space enthusiasts
Amateur:
6. buy a telescope and learn how to use it
7. take your telescope to public places and let strangers look through it (this is called Sidewalk Astronomy)
11. become an amateur rocketeer
20. attend a Yuri's Night (
http://www.yurisnight.net/), or organize one in your region
29. install SETI@home (
http://setiathome.ssl.berkeley.edu/)
36. learn your constellations (
http://www.skymaps.com)
41. hunt for asteroids (
http://cfa-www.harvard.edu/iau/mpc.html)
42. be a variable star observer (
http://www.aavso.org/)
43. find type 1A supernovae (
http://www.supernovae.net/isn.htm)
44. find a comet with SOHO (
http://ares.nrl.navy.mil/sungrazer/)
46. do occultation timing (
http://www.lunar-occultations.com/iota/iotandx.htm)
47. observe meteors and report your findings (
http://www.amsmeteors.org/)
48. build a radio observatory (
http://www.qsl.net/SARA/)
49. attend a space conference, and connect with other space enthusiasts
Vacational:
16. rich? put down your deposit for an upcoming space tourism flight
20. attend a Yuri's Night (
http://www.yurisnight.net/), or organize one in your region
25. take a space holiday (Houston, Cape Canaveral, Hawaii, Kazakhstan)
26. go to your local planetarium, science centre or IMAX theatre
Other:
2. switch to a satellite dish
9. watch the Discovery Channel, TLC, PBS. Write thank you letters when they show space-related programs.
10. convince your local cable provider to offer NASA TV
14. come out of the closet... admit you're a space fan to your friends and family. You aren't alone.
22. get satellite radio (
http://www.xmradio.com or
http://www.siriusradio.com)
27. attend a free or paid lecture at your local university/college
28. set aside money for your kids' education. No pressure though...
29. install SETI@home (
http://setiathome.ssl.berkeley.edu/)
34. make a space homepage/blog
38. do geocaching (
http://www.geocaching.com/). It uses GPS satellites... I know, it's a stretch.
45. analyze pictures of Mars taken by Mars Global Surveyor (
http://www.msss.com/moc_gallery/). Suggest new targets for detailed images.
As you might have noticed, some are eligible for two catergories.