1. There is no such word as "alot." The phrase you're looking for is "a lot" - or, even better, "many."
2. Generally, it's incorrect to describe a sex toy as "discrete," which is a word that has its own meaning and is not the same as "discreet" (the word you are probably looking for).
3. When talking about a "spot," like the G-spot or P-spot, those letters (G and P) should always be capitalized. The G and P both stand for something (in this case, Grafenberg and prostate), so they need to be capitalized.
4. The word is spelled "silicone," not "silicon" (which is a different thing).
5. Make sure you're spelling "definitely" correctly. (This is particularly hilarious when people mistakenly use the word "defiantly," which means something completely different!)
6. Make sure you are using enough commas that your sentences are clear. Sometimes, people will write extremely long sentences that have multiple sections but don't have any commas; this type of sentence can be very hard to read and is easy to misunderstand.
7. Don't use commas when you're starting a new/unconnected part of your sentence. There are many situations in which people use commas when they should be using semicolons (e.g. "I like this vibrator, my husband liked it too"), colons (e.g. "This vibrator has three functions, low, medium, and high"), or even starting a new sentence altogether (e.g. "This vibrator is great, I also found that it works well when used with a dildo").
8. Lube types are always hyphenated (water-based, silicone-based, oil-based) - they should not be written as two separate words or as one word. And if you're making a list, it should be hyphenated as well (e.g. "This toy can be used with water-, silicone-, or oil-based lubes"). I know it looks weird, but it's correct.
9. Qualifiers like "latex-free" and "phthalates-free" should always be hyphenated like that. Also, words like latex and phthalates should not be capitalized, as they are not proper nouns.
10. "Waterproof" is one word.
11. Don't forget apostrophes where they're needed, and don't use them where they're not needed! "Its" and "it's" are not the same thing; "dildo's" is incorrect unless you're trying to say "dildo is"; and basic words like "let's" can be completely altered in meaning by the addition or subtraction of an apostrophe.