May 22nd will be the last day retiring stamp sets will be guaranteed!
Here are my top 10 can't live without sets! (and if they are on this list I WON'T be selling them at my garage sale, along with many others I am hoarding-but never fear I am getting rid of a ton too!)
#1. Swallowtail -Hands down if you don't have this you will want to add this to your collection!
#2. World map-very versatile set for a background and as you can see my TOP 3 are background stamps, as since I have seen the new catalog and know that there are not many backgrounds.
#3. Corner Garden-With the coloring craze recently this is a really pretty stamp to have!
#4. Giggle greetings and Just kidding-I know this will make 11, but for the category of Humor I just had to add both of these. And Just kidding is not in any catalog as it was a part of stampin up's monthly online only photopolmer releases and it is a classic to have! It can retire at any time however, unlike the other sets that are available until May 22nd. Below is a list after the top 10 of the online only photopolymer sets in case you missed any of them!
#5. Open Sea-this is a very nice classic masculine set for multiple occasions!
#6. Boys will be boys-if you have boys in your life this is a great set for any age, as boys always will be boys!
#7. Bravo-a fabulous set of fun words for Congratulations for any occasion that deserves it!
#8. Petite pairs-This set is wonderful for the front and inside of a card and never gets old!
#9. Flowering flourishes-if you don't have a flourish set you need this one, it is great for adding to the backgrounds of your cards.
#10. World of dreams-for a silhouette stamp set this is my favorite, the birds are great for wedding, anniversary, birthday or sympathy. It is so versatile!
Photopolymer sets retiring May 31st and are while supplies last.
#1. Banner blessings-unique and fun font for bible verses!
#2. Gentle Peace-one of my favorite Christmas sets!
#3. Countless sayings #1 and Countless sayings #2: these are individual sets) Words! Love them!
#4. Bombs away-Great unique humor sentiments!
#5. Christmas Bliss and Christmas Tagables(individual sets)-Great Christmas word sets and solid images!

#6. Lovely amazing you-Love any word sets! Great sayings!
#7. Show & Tell #1 and Show & Tell #2: (individual sets) Love the banners for journaling and the arrows for some fun scrapbook pages or cards!
#8. Dear heart-super cute boy set!
#9. Wanderlust and Setting sail(individual sets): If you travel and scrapbook these are must haves!
#10. Map it out and Greetings from(individual sets) -Again MUST haves for travel pages!
#11. Bite me-Fun Halloween set!
#12: Eye catching-don't know about this one but if you do you'll want it! ;)