I do that fairly often. During the winter, my hair needs more moisture so I do use a rinse out as well as a leave in. During the spring and summer, that usually weighs my hair down so I "listen" closely to my hair. If it feels dry, then I'll use both, otherwise I just use a leave in.
3a, baby fine i/ii, low to normal porosity, protein sensitive
Mod CG since 5/12, from rainy Western WA
dislikes: glycerin, wheat protein
Likes: moisture, Mag Sulfate
Poo: Elucence Moisture Acidifying Shampoo
Cond: CJCR, VO5 Clarifying Conditioner
LI: JC WDT, CJ CR
Style: Loma Curvature Curvy Cream, True Polaris Protein Free Truly curly styling gel (Etsy), Sweet Curls flax seed defining gel (Etsy)