One of the reasons I mentioned ECB. A 5ml bottle is $2.50. Depending on your budget you can get as many as you want to try and not break the bank. They have like 250 flavors to work with. Can't post a link from iPhone sorry.
EC Blends
Base price for 5 ml. - $2.50 (Depending on extras from $.50 to $.70 per ml.)
+$.25 - Extra flavor
+$.45 Double extra flavor
No extra for 0 to 18 mg nicotine
+$.25 - 24 mg. nicotine
+$.35 - 36 mg. nicotine
No charge for changing PG/VG ratios
+$.15 Menthol
+$.20 Extra Menthol
+$.15 Cool Hit