Exfoliation only has to be done once in a while, depending on the strength. Strong stuff, once a fortnight or so; professional ones you get done during a facial once a month or every couple of months. Gentle exfoliating products can be used almost every day -- really depends on what it is and your skin type.

Facial foam gets used everyday. If you exfoliated that day, use it after exfoliating to wash all the dead skin you just rubbed off away.

Toner tightens your pores so your skin is firmer. Idea is it makes it more difficult for pores to get blocked and cause pimples.

As for products, it's really up to you ... personally I'd stay away from stuff that smells as it usually means there's some extra stuff in it that's unnecessary. Gels I've found tend to dry out your skin so if your skin is on the dry side maybe go for something more creamy. Shop around, do some research ^^