I started using a Neti pot this spring, after I got a raging sinus infection and was afraid to take antibiotics. Fixed the problem, no meds. (Took a couple of days for full effect, but even so.) Impressed my husband so much, he got his own. Now we both use it at the first sign of a problem, and it either prevents a full-blown allergy/sinus/cold, or makes it go away much faster. The recommendation is to use it once a day-once a week when you're healthy, and up to two-three times a day when you're trying to treat something. Hope it works for you!

Also, if possible, get a plastic (not ceramic) Neti pot. Then you can take it with you when you travel, without worrying about breakage (or weight).