In MetaTalk, stoneweaver suggests using the tag HopefulSummer (or HopefulWinter for our antipodean Mefites) for theme posts about positive and hopeful things.
Hey, hey, it's July Best Post Contest! Now with delicious CATEGORIES: "Weekly Best Post," "First and Second Time Posters," "Mod Categories," and "Member Categories."
Come add your own prize category! Vote for the best posts! Make a cool post and win a prize and/or the adulation of your peers!
Great first post from needlegrrl, A good handwritten letter is a creative act celebrating April as (US) National Letter Writing Month.
Also see hippybear's Metatalk thread April Showers Bring May Flowers about posting "simply happy, joyous, silly, or positive posts" this month. (Also open to discussion for a May posting theme.)
I thought it would be interesting if mefites posted lists of what they plan to or have read, listened to, or watched this summer. I don't want to leave out people in the Southern Hemisphere, though, so feel free to post seasonal lists for whatever the season you may be experiencing!
ArbitraryAndCapricious asks Mefites to share their seasonal reading/ listening/ whatever list