Help! I am going to Costa Rica for the first time over Christmas......my husband won't let me check a bag for fear of it getting lost, and between needing to take DEET, bug cream, sunscreen, just plus all my usual toiletries, there is no way this will all fit in my little US-required ziplock bag in my carry on baggage! Argh! Can you buy stuff like that in Costa Rica? I mean, I can live without shampoo and saline solution for a couple days......we are landing in San Jose and then driving up toward Canas and then turning toward Bijagua where I think there will be few services, but how about on that road from San Jose to Canas?